Yeah, for SACD and DVD-A music listening, it is generally recommended that the surrounds be direct radiating speakers like the M22s. You wouldn't be losing much by going with the QS series speakers for surrounds, and if you were going to be using this system for movies as well, I would recommend going in that direction. But, since it's a music only system, the 22s would work very well.
As far as the mains are concerned, either the 60s or 80s will suffice. Since you are going to be using a sub, you are limited only by your budget, and the "I want them" factor.
