Help with graphics card upgrade.

[Duraphobics]

Hi, i'm looking to uprade the graphics card on my pc, but i don't have alot of experience buying individual parts.
My spec's are:

Motherboard: Asrock K10N78 Full HD-HSLI AM2 5200MT/S Nvidia 8200 Chipset SKT AM2
Processor : AMD Athlon II X2 250 3.0ghz
Physical Memory : 4 GB DDR2
Graphics Card Card : Nvidia 9400 GT 1gb DDR2
Power Supply: 450W, but i don't know the brand. I know it isn't a good brand.

I usually play at 1920x1080p, And i would like to be able to run Crysis, Mass Effect 2, WoW, Dragon Age.

My Budget is around £100-£150 depending on if i need a new psu or not, but i think i will.

Thanks, Dan

 

[wa1]

Nope, if your PSU is only 450W and unbranded, HD 4770 is more suitable...
And if u upgrade your psu then 4870 or 5750 is a good choice...