£1000 Computer Budget

Hello all, Im looking to either build or buy a computer with a budget of £1000. It will be for playing games, specifically World of warcraft. would it be possible to max out WOW's Graphics on a £1000 Computer I dont need speakers or a monitor, but EVERYTHING else i do need, would be nice to have word also I have a close friend who could help me build it so custom computer is cool if thats the way to go, I know i want 8gb's of RAM and a hardrive no bigger then 150 gbs Thankyou !

Okay i've had a look around, so far i have this, do you see any underlying problems or mistakes in this build ? Motherboard EVGA P55 FTW 200 Motherboard £230 CPU Intel Core i5 750 £140 RAM Corsair XMS3 8GB Dual Channel DDR3 RAM £100 Video Card OTAC GeForce GTX 480 Graphics adapter - 1.5 GB - GDDR5 SDRAM £338 Hard Drive Western Digital Caviar Black 500 GB £40 DVD Burner Asus DRW-24B1ST DVD Burner £20 Case Cooler Master HAF 922M ATX Mid Tower Case £80 Power Supply Cooler Master GX Series 650W £45 This totals at £933.

looks fine to me.