Leeroy, none of us know the amount of power that your setup will need. This will depend largely on how loud an average level you'd be playing at and how wide of a dynamic range the program material would have. At this point keep in mind that your EP600's amplifier will take a substantial part of the burden off the internal amplifier channels in whatever receiver you get(this is actually a form of active biamping). At this point it would seem to be premature to assume that the combination of the receiver and EP600 amps would be inadequate for your needs. Therefore I'd suggest that you consider(especially since you mention room EQ)the new Denon 2807 or HK 640 which are just coming out, which have what are generally considered the most advanced receiver EQ systems. If in the future it should come about that you actually need more power, you could then spend the money on a separate two-channel amplifier(at least 300 watts to make a significant difference) to drive the M80s from the pre-outs on the receiver.
