Help me with graphics card selection

Currently running windows xp, with pentium 4 CPU 2.40Ghz, 760 MB of RAM.

Which would be a decent graphics card for my system?

is this for gaming?

and what mobo do you have?

agp or pci-e?

if you have agp i wouldnt bother getting a graphics card because your system is starting to show its age. i would look to buying something new

Looking to play games like pro evolution soccer and STALKER..

this is the specs of my com except ram upgraded to 768 mb :

http://www.acer.com.au/ACA/ACAWebV2.nsf/approvedbyheading/E05B08DC3D5357FBCA256F390083A0CF?OpenDocument

Which graphics card could i get?

will geforce 8600 GT be compatible with my system ?jesuli237