i would agree with vernong with this one. the af7 is great cooler dun get me rong but for a quad its gonna be a tough job. if u were gettin the new q6600 rev with b0 steppings then i might be a lil better depending on how much this will affect ur cpu temps. but for a standard o/c i guess it would be fine just keep under 60c
i've been doing some thinking, i might just get a e6750 when the time comes...i mean the q6600 seems nice and all. but i would think with a e6750 OC'd it would be just as good.