I will also recommend
www.martinloganowners.com and I believe if you will look through their systems thread you will find quite a few happy ML fans that have all kinds of different setups... including some in very small rooms like mine, with the ML's up against the walls and in corners. It is not necessary to have 3' behind or 2' from the side walls. I have neither and they sound wonderful... much better than anything that has ever been in my room. Could they sound better, possibly... but, I am completely satisfied beyond excitement.
Of course you have the power amp to take care of them, but mine are tickled with the 120wpc they get from my NAD T785 receiver and they get just as loud any any other speaker I have ever owned.
I also use mine mostly for home theater... awesome is not good enough to describe what the ML's can do in a home theater setup. I have the Motif center and Fresco surrounds and it is again far better than anything that has ever been in my room.
When I do listen to music, it is Pink Floyd, David Gilmour, Roger Waters, Led Zeppelin, Eagles, etc. Never sounded better!
Regardless of your room, regardless of your music... I do not believe you will go wrong.