Hello all. I want to upgrade my video card and I am not sure which one to get. I do not want to spend more than 200 dollars. Below are my comp specs. The games I would like to play is COD 4, Bioshock, etc. with graphics at high settings. I want a 512mb video card. Hp pavilion a1650e Amd 64 x2 4600+ 2.4ghz cpu pci-e nvidia 7500le video card 256mb 2gb ram 300watt psu, which I am sure I will have to upgrade with better video card. Also, does anyone know what chipset this comp has or where I can find out. I would also like to upgrade the cpu if possible.