Hearing that it was the official "Doom3" card at QuakeCon helped me decide to do it now instead of waiting.

Well, NVidia was the official sponsor of QuakeCon 2003, while ATI was for QuakeCon 2002. And NVidia was in 2001, etc... All it means is one company was willing to pay more then the other. The game is going to run fine on any high end card, since it would be suicide for a game company to only support one brand of video card these days.

Though, from the looks of it, the game will run fine at normal settings. We will all have to wait on much faster systems to get a chance to play Doom 3 at max settings and keep framerates around 60fps. This engine scales very well.