Well not a lot can handle a quad when clocked. When on 1.5v and running at a certain speed (Marci said which speed, I forget now what that figure was) then they put out more watts of heat than a unmodded Phase change unit can handle.

Not sure on R600, all we have is rumours as to how much heat they put out. I don't think we will see half price cuts on processors, maybe the retail outlets will see a good drop in getting them, but I bet they keep a good margin on them.