Seek, I am a recent Axiom customer, and I was in the exact position as you are. I have the M22's, VP150, QS8's and the PB12-NSD in my apartment. I too was worried the M22's would not give me what I wanted and thought about the M60's. All these guys gave me the same input they've given you and boy were they right.

The M22's are excellent, and as Grunt said, paired with the SVS you won't be missing much, if anything! I initially purchased the fronts and center speaker and used them alone for over a month with no complaints. Once I added the SVS it definately filled out the bass. I think you will be absolutely satisfied with this choice. I must add, you better bolt your sh*t down cuz the SVS is gonna kick your @ss in home theater use, and sounds excellent for music in 2.1 channel as is my preference.