NVIDIA has announced a commitment with the Linux crowd and has posted new drivers in their website:
NVIDIA today released new Linux drivers version 1.0-4349 that includes support for NVIDIA GeForce FX and NVIDIA Quadro FX graphics solutions, as well as the new Red Hat 9.0 and Mandrake 9.1 distributions.

Also, latest Windows Detonators v43.45 seem to be getting a lot of press, the Firingsquad has posted a Detonator drivers comparison looking at performance of this driver with video cards ranging all the way back to GeForce2 MX.