You can also find a few places that have a GeForceFX 5600NU PCI for sale, but they're pretty rare. Easiest to find would be a R9000/9200, or a GF4MX. Those will play DX8.1 games, although the GF4 can't do pixel shaders (and the R9000 does them, but does them so slowly as to be mostly useless). The 9100 (a PCI version of the 8500LE) would likely be the best.