Re: Geforce 6800NU overclocking
NVJarett: I'm a big fan of my 6800NU too. If you have an Athlon XP system, it's the best choice, I think, because bottlenecking would prevent the more expensive cards from being worthwhile. It does a great job of handling all the games I have - including Battlefield Vietnam, UT2004 and Far Cry - and can hit x800 3DMark scores with modest overclocks, depending on what kind of system you are running.
The 6800NU is an excellent card for the money, and since Doom 3 is OpenGL, and nVidia cards tend to do well on OpenGL, I don't see how you could go wrong.