Ahhh, professional advice from others....
Granted, the GeForce is slightly faster, but the Radoen looks better. And honestly, can you see a 2 3 or 5 fps difference. No. Nobody can, at least not at the speed these cards run. From 25 to 30, ya, from 80 or 90 to 90 or 100...Please. Besides, the Radeon has TIVO. Does the GeForce? No.
Try this for advice.
Radeon looks better, has more features on the card, runs ever so slightly slower, but not noticably. There is the issue of driver support, but I beleive ATI is doing a better job then before. Also, the Radeon is kinda quirky with one or two games out there, but these are few and far between.
The GeForce has better driver support, does push more fps, and is very nearly assured of running every game out there. It costs way more, not justified IMO, and has less features on the card, and uses less technology and more brute force to get those fps. Also, not nearly as good of 2D
Hope that helps.