Chromance, welcome. The speakers in the Epic 80 are average or slightly higher in sensitivity and don't have any unusual requirements as far as a power source goes. Any of the popular makes such as Denon, Onkyo, Yamaha, etc. with the features that you want and a price that fits your budget should work well. If you'd care to specify your price range and anything special that you're looking for, maybe some specific suggestions could be made.
As far as to whether the M80s are too much, you should be able to sit at least 8-9' away, but you can of course adjust the sound level of any speaker to suit the situation; big speakers don't mean that you have to play them very loudly. M80 users report that they can be delicate as well as powerful.
