E6600 FTW.
Btw, I'm running a 6400 @ 3.2Ghz at stock voltage on an Asus P5B-E with a $20 Rosewill tower cooler. So, if you O/C, you can save $$$$. This 3.2Ghz 6400 blows away a stock 2.9x Ghz X6800, which costs loads of $$$$!!
AMD won't be back until Barcelona, if then.