I've read so many times various threads how the 6600GT beats the vanilla 6800 in benchmarks. I don't know why everyone keeps saying this, but it's simply not true. I just wanted to provide some benchmarks to straighten this out. Check out this
Tom's Hardware article. Don't get me wrong, I still think the 6600GT is a better bang for your buck. The difference in benchmarks isn't big enough to justify the price difference, but for the sake of accuracy, the 6800 does indeed outperform the 6600GT.