Well, I have a GeForce Fx 5200 and I gotta say it works much better than any ATI card. Just be sure to get the official installer from
www.nvidia.com/object/linux and read the readme. You have to have your kernel source installed unless you're using a generic kernel. You should also check the warning about the linked libraries in the readme. Xfree86 was crashing for me until I realized that it was still linked to old versions because of a 3d library I had installed earlier. I don't know how well Doom 3 will work yet since they haven't released a Linux binary...I fear 128 megs of video memory won't be enough!
