Man, I can get a Q6600 B3 for $295 CDN today! But I don't know if I should wait for the G0's instead. Is there that much difference??

I got a Swiftech setup so cooling doesn't worry me. I wanna know if an extra 200 MHz on an OC is worth waiting though.....????

Any thoughts?? Anyone got definitive results of B3 vs G0 ???