Welcome to the forums Scott. What are the physical dimensions of the room?
I suspect that if you are sitting far enough away from the speakers, you would be OK. The distance you need to be to get a proper soundfield depends on the room size and how lively it is. I would suspect that you want to be at least 4' from a set of floorstanders.
The M60 will be much better than your current setup. With dual woofers (4x what you currently have) and more cabinet space you will get both more output and lower extension.
As long as your amp has sufficient power the M60s will not distort.
Bookshelves and a sub would be a good option if you have placement issues with the M60. Since this is music only and its such a small room, the EP125 or EP175 would probably be enough.
