You know, I don't think that M3/VP100/QS4 would be a bad choice at all. I have a VP100 and QS4s and I'm generally satisfied with them. I have a larger room than you do, I think. Of course, I also listen at lower volume levels than most around here, which explains why I have M80s. (???)

I am the Doctor, and THIS... is my SPOON!