Originally posted by: nitromullet
You should be able to pick up an 6800GT or an X800XL for around $250-300. I would imagine that you can probably find better deals in ATI cards, since there appears to be greater availability of higher-end AGP ATI cards than NVIDIA.
Originally posted by: Rage187
You should use that money to upgrade to PCI-Ex.
Mwave has the ASROCK Dual Uli board and a Dual core 3800 for $390. The board comes w/ AGP and Pci-Express so you can upgrade the graphics later when you feel like moving over.
I had the board and Anandtech showed it gave some of the best AGP and Pci-Ex performance.