Anybody see any benchmarks comparing the GeForce 6800, 6800 GT, and 6800 Ultra? I am looking at the 6800, but I want to see what kind of FPS and benchmarks it gets. If the card is not that much faster, I may just go with a 9800 Pro. Your thoughts? What ATI or Nvidia card is the best bang for your buck in the $200-$300 range?