Gforce or nforce or radeon?

Mmm, indeed, I've been using ATI cards ever since my TNT2 card came DOA on a warranty replacement and of course was out of warranty when I got the replacement so they refused to do anything for me. (It took half a year to get the replacement, with proper RMA procedures)

If you want a Radeon Card to play Doom 3, then you are either buying a 9800 PRO or 9800 TX.