Wow, thanks for the prompt and in-depth responses! This community really lives up to its reputation on other boards...

I don't think it matters much, but my measurements on the room were wrong...its a 28x17 room.

So, it appears that my room is considered a medium sized room and the M60's should be sufficient? I might be a little too analytical here, but I assume that the M60's would still be able to get loud and be "felt" even sitting 12-15 feet away?

I am torn, because part of me thinks it might be worth the extra $300 for the M80s....has anyone else struggled with the M60 vs M80 issue?

Also, how is the Axiom center speaker....it looks extremely inexpesnsive compared to other centers I have looked at.

Thanks again for the help.