Nuke, welcome. When you mention a possible bigger future listening room and a loud listening level(protect your hearing!)you imply that you're leaning toward tower speakers, although M22s should be excellent in your present room when supported by the sub that you're considering. Either M60s or M80s should make you very happy and, depending on the room available, you might consider a vertical M22 or a third M60/M80 as the center. Certainly go with the superb QSs for the surrounds, probably the QS8s.
As to the receiver, either of those that you're considering would be fine with either the M60s or M80s. Keep in mind the superior video processing in the Onkyo 875 in deciding.
