My room is bigger than yours and I just have a pair of M3's in em (plus VP150, QS4's and a sub).
Surprisingly these lil M3's fill the room rather well. Yes, I still want a pair of floorstanding speakers (M60's) but thats mostly just something I've wanted for years but never could afford (still can't).
If ur on a budget I'd say the M3's would be fine. If you have a lil more money M22's and a sub would prolly give more impact, and obviously M60's would be the most ideal if you really have some money to spend on speakers. But fear not if you go the M3 route, they are truely amazing *bookshelf* speakers.
