I have not had the pleasure of listening to the M3i's, but I do have an 3 M2i's (fronts and centre) setup in my bedroom, and it sounds great. I have a VP100 in my main HT setup, and actually the M2i's does a very respectable job in centre channel duty compared to the VP100. For the price it will be the cheapest way to go and still get very good sound.

Welcome aboard.