I have a Q6600 9x Multi, running at 3.6 Ghz, with 1066 Mhz DDR2 ram. It will take a hell of a new chip to make me leave my baby Q66.
You will find OC'ers all over the world with praise for the bang for buck you get from a Q6600.
However, 333Mhz FSB base, they have been getting consistent...