I don't think there's any such thing as "too much for a room". Maybe "more than adequate" is a better term.
I was thinking the same thing- about the M80s. I went with custom wood finish M60s instead. A few more weeks, and they'll be here. I figure they will be speakers I'll have for a very long time, so I want them to have a nice finish since they'll be the center-pieces of my HT. I thought about the M80, but I really don't think they are "necessary" or that I'm losing anything by going with a "lesser" speaker. The M60 is a wonderful speaker and I will in no way feel that it isn't powerful or "good" enough, compared to the M80- plus it's more practical with it's smaller size and 8ohm load.
