The new G0 stepping for the Q6600 and Q6700 will make for good OC. You can take a look at the CPU charts and learn a decent bit about the Dual vs Quad scenario. Basically, the Dual 3.0 currently (obviously) out-performs the Quad 2.4 on single-threaded applications. I feel that the Dual 3.0 will continue to out perform, logically, the Quad 2.4 in double-threaded applications. Where the Quad 2.4 and Quad 2.66, etc, will pay off is in true multi-threaded applications, such as near and far future gaming and other applications which make use of 3+ cores (3D applications etc).