Lots of Stop Errors and Performance Decrease

First off, note that I have searched for usbkbd.sys and elitekeylogger, did a virus scan, adware scan, and ran system mechanic 6.

I've recently been having a few issues. My performance has decreased quite a bit, although I'm using Iolo System Mechanic 6 to optomize my PC. Also, every once in a while (usually when I try to open a file or run a program) Dr. Watson Postmortem Debugger will continuously attempt to start a new session, resulting in 30-70 running Dr. Watsons. This freezes up my entire computer and I often have no choice but to perform a hard reboot. So far I've noted 3 different stop errors:
IRQL_NOT_LESS_OR_EQUAL
Stop: 0x0000000A (0x00000021, 0x00000002, 0x00000000, 0x804F582A)

Stop: 0x0000007E (0xC0000005, 0xEE0690CC, 0xF6078116, 0xF6D77E18)
usbkbd.sys - Address EECC90CC base at EE0BF000, Datestamp 435F6140

INVALID_PROCESS_ATTACH_ATTEMPT
Stop: 0x00000005 (0x00000000, 0x8316BA10, 0x00000001, 0x00000000)

Here's my Hijackthis Log:

Logfile of HijackThis v1.99.1
Scan saved at 7:19:23 PM, on 1/19/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.5730.0011)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\csrss.exe
C:\WINDOWS\SYSTEM32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Windows Defender\MsMpEng.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
c:\program files\common files\logitech\lvmvfm\LVPrcSrv.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\CTsvcCDA.EXE
C:\Program Files\ewido\security suite\ewidoctrl.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\iolo\System Mechanic Professional 6\IoloSGCtrl.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Universal Shield 4.1\US30Service.exe
C:\Program Files\Windows Media Player\WMPNetwk.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\System32\alg.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\system32\dla\tfswctrl.exe
C:\Program Files\Windows Defender\MSASCui.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Program Files\iolo\System Mechanic Professional 6\SystemGuardAlerter.exe
C:\Program Files\iolo\System Mechanic 4 Professional\PopupStopper.exe
C:\Program Files\iolo\Common\Task Agent\Task_Agent.exe
C:\Program Files\BitTorrent\bittorrent.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Windows Media Player\WMPNSCFG.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\iolo\System Mechanic Professional 6\SMSystemAnalyzer.exe
C:\Program Files\Kaspersky Lab\Kaspersky Anti-Hacker\KAVPF.exe
C:\PROGRA~1\INCRED~1\bin\IncMail.exe
C:\PROGRA~1\INCRED~1\bin\IMApp.exe
C:\PROGRA~1\AVANTB~1\avant.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\WinRAR\WinRAR.exe
C:\DOCUME~1\Me\LOCALS~1\Temp\Rar$EX00.922\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,SearchAssistant = http://search.bearshare.com/sidebar.html?src=ssb
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://search.bearshare.com/sidebar.html?src=ssb
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://search.bearshare.com/sidebar.html?src=ssb
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://google.bearshare.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Internet Browser
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
R3 - URLSearchHook: BearShare MediaBar - {D3DEE18F-DB64-4BEB-9FF1-E1F0A5033E4A} - C:\Program Files\BearShare applications\BearShare MediaBar\MediaBar.dll (file missing)
F2 - REG:system.ini: UserInit=userinit.exe
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Easy Gif Animator Toolbar Helper - {96372AB6-15EB-4316-B497-71C741BC548C} - C:\Program Files\Easy Gif Animator Extension\v3.2.0.0\EasyGifAnimator_Toolbar.dll
O2 - BHO: XBTP02634 - {F97DA966-F09D-4cab-BF29-75A0026986EA} - C:\PROGRA~1\BEARSH~1\BEARSH~2\MediaBar.dll (file missing)
O3 - Toolbar: Easy Gif Animator Toolbar - {35065594-9169-4A34-B167-FC4865038E53} - C:\Program Files\Easy Gif Animator Extension\v3.2.0.0\EasyGifAnimator_Toolbar.dll
O3 - Toolbar: BearShare MediaBar - {D3DEE18F-DB64-4BEB-9FF1-E1F0A5033E4A} - C:\Program Files\BearShare applications\BearShare MediaBar\MediaBar.dll (file missing)
O4 - HKLM\..\Run: [dla] C:\WINDOWS\system32\dla\tfswctrl.exe
O4 - HKLM\..\Run: [Windows Defender] "C:\Program Files\Windows Defender\MSASCui.exe" -hide
O4 - HKLM\..\Run: [UpdateManager] "C:\Program Files\Common Files\Sonic\Update Manager\sgtray.exe" /r
O4 - HKLM\..\Run: [ssdiag] C:\WINDOWS\ssdiag.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [SystemGuardAlerter] SystemGuardAlerter.exe
O4 - HKCU\..\Run: [System Mechanic Popup Stopper] "C:\Program Files\iolo\System Mechanic 4 Professional\PopupStopper.exe"
O4 - HKCU\..\Run: [iolo Task Agent] C:\Program Files\iolo\Common\Task Agent\Task_Agent.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [BitTorrent] "C:\Program Files\BitTorrent\bittorrent.exe" –force_start_minimized
O4 - HKCU\..\Run: [WMPNSCFG] C:\Program Files\Windows Media Player\WMPNSCFG.exe
O4 - HKCU\..\Run: [SMSystemAnalyzer] "C:\Program Files\iolo\System Mechanic Professional 6\SMSystemAnalyzer.exe"
O4 - Global Startup: Kaspersky Anti-Hacker.lnk = C:\Program Files\Kaspersky Lab\Kaspersky Anti-Hacker\KAVPF.exe
O8 - Extra context menu item: Add to AD Black List - C:\PROGRA~1\AVANTB~1\AddToADBlackList.htm
O8 - Extra context menu item: Block All Images from the Same Server - C:\PROGRA~1\AVANTB~1\AddAllToADBlackList.htm
O8 - Extra context menu item: Highlight - C:\PROGRA~1\AVANTB~1\Highlight.htm
O8 - Extra context menu item: Open All Links in This Page… - C:\PROGRA~1\AVANTB~1\OpenAllLinks.htm
O8 - Extra context menu item: Open In New Avant Browser - C:\PROGRA~1\AVANTB~1\OpenInNewBrowser.htm
O8 - Extra context menu item: Search - C:\PROGRA~1\AVANTB~1\Search.htm
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\npjpi150_06.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\npjpi150_06.dll
O9 - Extra button: Run IMVU - {d9288080-1baa-4bc4-9cf8-a92d743db949} - C:\Documents and Settings\Me\Start Menu\Programs\IMVU\Run IMVU.lnk
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {14B87622-7E19-4EA8-93B3-97215F77A6BC} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/Messe…nt.cab31267.cab
O16 - DPF: {1DA3C4AB-E6B6-47A6-B0F3-1BD81524B51B} (ActiveWorldsDownload Control) - http://www.activeworlds.com/products/Activ…ldsDownload.cab
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Program Files\Yahoo!\Common\yinsthelper.dll
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://rem2929.spaces.live.com//PhotoUpload/MsnPUpld.cab
O16 - DPF: {5ED80217-570B-4DA9-BF44-BE107C0EC166} (Windows Live Safety Center Base Module) - http://scan.safety.live.com/resource/downl…lscbase5059.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://v5.windowsupdate.microsoft.com/v5co…b?1106530293815
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftupdat…b?1151289308281
O16 - DPF: {74C861A1-D548-4916-BC8A-FDE92EDFF62C} - http://mediaplayer.walmart.com/installer/install.cab
O16 - DPF: {A8F2B9BD-A6A0-486A-9744-18920D898429} (ScorchPlugin Class) - http://www.sibelius.com/download/software/…tiveXPlugin.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/MsnMesse…pDownloader.cab
O16 - DPF: {BD393C14-72AD-4790-A095-76522973D6B8} (CBreakshotControl Class) - http://messenger.zone.msn.com/binary/Bankshot.cab31267.cab
O16 - DPF: {CA797B15-445F-4AA9-9828-8A88502F560F} (Uninstall Control) - http://www.worldwinner.com/games/shared/uninstall.cab
O16 - DPF: {CEA3052D-65B9-44E2-A501-5E14024BC66F} (TricksterActiveX Control) - http://www.tricksteronline.com/control/tricksterActiveX.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shoc…ash/swflash.cab
O16 - DPF: {D88C7675-7CEE-4C9A-BDD4-7A43EED7794D} (Logout Class) - http://www.tricksteronline.com/control/KALogoutComponent.cab
O16 - DPF: {E504EE6E-47C6-11D5-B8AB-00D0B78F3D48} (Yahoo! Webcam Viewer Wrapper) - http://chat.yahoo.com/cab/yvwrctl.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{E6B2971C-F551-485B-AFAC-6CF3AA23F8C7}: NameServer = 192.168.254.254
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: ms-help - {314111C7-A502-11D2-BBCA-00C04F8EC294} - C:\Program Files\Common Files\Microsoft Shared\Help\hxds.dll
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxdev.dll
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: Adobe LM Service - Adobe Systems - C:\Program Files\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Automatic LiveUpdate Scheduler - Symantec Corporation - C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
O23 - Service: avast! Antivirus - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\system32\CTsvcCDA.EXE
O23 - Service: ewido security suite control - ewido networks - C:\Program Files\ewido\security suite\ewidoctrl.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: iolo System Guard (IOLO_SRV) - Unknown owner - C:\Program Files\iolo\System Mechanic Professional 6\IoloSGCtrl.exe
O23 - Service: iPod Service - Unknown owner - C:\Program Files\iPod\bin\iPodService.exe (file missing)
O23 - Service: LiveUpdate - Symantec Corporation - C:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~1.EXE
O23 - Service: Process Monitor (LVPrcSrv) - Logitech Inc. - c:\program files\common files\logitech\lvmvfm\LVPrcSrv.exe
O23 - Service: LVSrvLauncher - Logitech Inc. - C:\Program Files\Common Files\Logitech\SrvLnch\SrvLnch.exe
O23 - Service: SQL Server (SQLEXPRESS) (MSSQL$SQLEXPRESS) - Unknown owner - c:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Binn\sqlservr.exe" -sSQLEXPRESS (file missing)
O23 - Service: Intel NCS NetService (NetSvc) - Intel® Corporation - C:\Program Files\Intel\PROSetWired\NCS\Sync\NetSvc.exe
O23 - Service: Remote Packet Capture Protocol v.0 (experimental) (rpcapd) - Unknown owner - %ProgramFiles%\WinPcap\rpcapd.exe" -d -f "%ProgramFiles%\WinPcap\rpcapd.ini (file missing)
O23 - Service: US30Service - Unknown owner - C:\Program Files\Universal Shield 4.1\US30Service.exe

Please respond ASAP.