Hello
Glyn I just bought a 256Mb GForce 6800GS and am very impressed so far
But have not had a chance to set it up to run at its best proformance.
This is a PCI express card so check if as they also do an APG version which I understand are slightly cheaper.
Bought for 3D graphics/Photoshop but games run a treat.
hope this is of some help.
regards
TopiToo