Hi all.....

Without a PCI-e the X800XT is about the highest you can go....
and they are like rocking horse droppings to find....

could always go for the Radeon 9800 Pro 128MB AGP Macintosh Edition but they are still around the $200 - $250 price tag..

Edit: also ATI Radeon 9600 Pro pc & mac edition 256mb agp DVI/tv out There are some Nvidia cards but i think they're even older/slower models