Graphics Card Upgrade

[BNR1487]

So I'm looking to upgrade the graphics card in my computer. I was trying to stick a Nvidia GEForce 7600 in there that I parted out of another computer until I realized that I have a PCI x slot rather then AGP, which is an issue. So with a Pentium 4 processor, 1.25 ram, which is easily upgraded, and I can easily get a new power source, what would be a comparable card to the GEForce?

 

[raybay]

The 4600 would work, but why not decide on price.