Geforce GTS if all you want is pure framerate
The Radeon DDR LE is only $83 shipped from
www.newegg.com and is an awesome card. It will perform on par with the GTS sometimes when it is in high resolution 32bit color situations (which is what you want because it looks purdy

). Also it has the best DVD playback, and 2D image quality (except for maybe the maxtor).
However, there is one bad part to the Radeon DDR LE. This is that it has very poor Win2K support. I have Win98 though, and it has been running beautifully for me.