mongoman, where do you live? There just might be an Axiom owner within driving distance willing to let you listen.
Your decision is a tough one, but I'm partial to the M22+EP500 combination because it's what I've got. The only reason not to go with it, IMHO, is if you like to listen at really loud levels of if you will sit pretty far from the speakers (i.e. they will be placed along the 14' wall and you're sitting almost on the other side of the room.
I have my M22s and EP500 in an 11x19x8 room. They and the EP500 are on the 20' wall so I don't sit too far away from them. They fill the room very easily and will play louder than I can stand.
The M60s and the M22s have the same tonality and quality of sound, and the EP500 is quite a bit better than the EP350, so the M22+EP500 takes the cake as a total package.
