Oh and the reason I say stay away from Radeon 8500, 9000, 9100, 9200, 9250 is because they are all basically the same. The problem with this generation is that they don't have multisample AA and have rather poor anisotropic filtering. The drivers from that generation are iffy, and the chips themselves don't perform very well compared to NV contemporaries. GeForce 3, 4 and FX have superior antialiasing, filtering and most likely OpenGL & D3D support.
An interesting thing about Radeon 8500 and friends is that they have Pixel Shader 1.4 support which is quite a bit superior to PS1.1 of NV GF3 and PS 1.3 of GF4Ti. Unfortunately only a few games used it. Far Cry and Doom3 will use the extra features. But of course the cards were really out of their league with those games so the advantage doesn't really exist and they will actually still be outperformed by GF4. This was apparently due to hardware flaws.