At the end of july I'm looking to get either a q6600 or 6750/6850 (any comments on which one and why?) but anyway I want to overclock a little without significantly changing vcore, just a moderate overclock. I don't know if I need something like a tuniq tower or thermalrite 120 extreme or big typhoon if I'm not trying to overclock as much as possible. At first I was going to get an arctic 7 pro with an 6420 but now I'm wondering if I'm getting a faster chip or one with more cores do I need something a lot heavier? It seems like I would for the q6600 but how about for just the 6850 or 6750? Would something like the arctic 7 pro or cooler master hyper tx do me just fine or should I be looking into the heavier coolers?