For almost 1 year I've been using my Q6600. My question is will there be any 45nm quad core processors that will hit or exceed 4.0Ghz in the before theh 775 motherboards are phased out for nehalem?

Are there going to be any new 45nm quad cores released before Nehalem arrives in Q4? I want to upgrade and pass off my Q6600 to my brother before November.