upgrade advice

i have a dell inspiron 530 mid size tower
windows vista 32 bit
intel core 2 duo
e 4500 2.2 ghz
2 gb ram pc2-6400 DDR2 800mhz
upgrading to 4gb
300 watt power supply

i want to upgrade my graphics card and power supply
but i dont know what to buy to upgrade it with
can i get suggestions on what kind of card and power supply
thank you

Hello Texas.Angel, Welcome to the WTT Forum. You should buy a power supply that suits your graphics card. So if you're going for a high end card, you'll need to get a bigger and more expensive PSU. It all comes down to budget and what you need it for. Are you looking to upgrade your machine for gaming, or do you just use it for browsing and common office tasks? How much are you looking to spend? Cheers, Nahumi

this is my upgrade options i have chosen VisionTek 450W Dedicated Graphics Power Supply Intel Core 2 Duo E8400 3 GHz ASUS ATI Radeon HD 5550 (EAH5550/DI/1GD3(LP)) DDR3 1gb so will this work in the system i have and can i use a DDR3 video card

this is my upgrade options i have chosen VisionTek 450W Dedicated Graphics Power Supply Intel Core 2 Duo E8400 3 GHz ASUS ATI Radeon HD 5550 (EAH5550/DI/1GD3(LP)) DDR3 1gb so will this work in the system i have and can i use a DDR3 video card

the power supply should be ample for the upgrades, but know nothing about the make and it's reliability. would need the make of motherboard before saying if it definitely supports that cpu and even if it does(which i'd say yes too) i'm not sure if you can upgrade the cpu, and still have the operating system work, in my opinion, you should be able too and if it wasn't a prebuilt dell i'd say you'd have no problems, but something to keep in mind, you may need to do a complete clean install of the operating system before everything works. if you can afford the extra for the hd5770, i'd go for that, especially if you play games, but if you can't yes that will be fine. any type of memory on the card will work, because it's there to be used by the gpu on the card, it can have ddr5 on the card and only ddr2 on the motherboard in the pc and things will work just fine.