I have a home theater only system, and I'm thinking of getting an amp such as the Stratos 3-channel to power my mains and center channel. My main question is, would I then need to buy another amp to power the surrounds, or could I just use my Marantz SR-8000 to power them? Would I be better off buying a 5 channel amp (such as that new Rotel)? Does anyone know how the SR-8000 stands up as a pre? For Home Theater only, is it even worth it?