Axiom Home Page Forums General Discussion Advice from Axiom Owners M80s too much?

I have been researching HT for a few months and narrowed my speakers to Axiom. I couldn't resist the M80s in the outlet so I placed my order. I am wondering if the M80s may be too much. My room is 16x18 and has an angled ceiling that goes from 8 - 26ft.

I originally planned on buying the M60s, VP150, QS8s, and a VTF-2 sub in steps. I broke the budget last month buying a Pioneer Elite 630HD and a DV45A. I was waiting for my rebate to place my order but did not want to pass up on the outlet deal. I don't have a A/V receiver either, I am using a Carver system that I bought over 10 years ago. I am looking at the Rotel RSX-1055.

Is 75W enough for the M80s or should I go with the M60s?