Well I have no knowledge of Boston or the surrounding area, but I can tell you that step 1 in your plan is going to bring you months of ear to ear grinning enjoyment!

The M80's stand on their own without the need of a subwoofer as far as music goes. You will miss out on the bottom end when it comes to watching movies, but the music base will be covered.

My Stuff :

M80's
QS8's
VP150
EP800
Denon 4802
Emotiva XPA-3
Samsung BD-P3600
Sharp 65 Inch Aquos LCD