After reading countless thread regarding E6850 vs Q6600 G0s, I think I'll still go for a G0 Quad 6600 for various reasons. Since I already have a golden E6700 as a C2D, my money towards the next CPU investment is going to be a quad Q6600

Sooner or later multi-threaded application will be more significant then just pure mhz OC on C2Ds.