ATI Radeon 9800XT Pro (AGP)

7600gs agp is cheap and better. If you dont wanna spend a lot, get it.
Your computer specs would help decide though..
But i would rather spend a little more and get my hands on a 7600gt agp

The absolute best you can get at this point with agp is a 1950pro.

http://www.newegg.com/Product/ProductList.asp?Category=38&N=2010380048+1069609639+106790809+1067924896&Submit=ENE&SubCategory=48

There are faster cards out there, but only for Pci-e.

x1950pro in AGP can be found for 200-250. Why not upgrade to PCI-e and get the same x1950 pro in PCI-e for 175?