Hello nc1
Great setup!! I had a similar system (M60 like fronts, QS8 sides, M2 backs, Gigantic Klipsch KLF C7 center, Velodyne 10" sub and Onkyo TXDS797 THX). Sounded spectacular.
I then added a second sub (SVS 20-39) and outboard amplification - Onkyo M-504 2 channel for the front L/R speakers, and an Anthem PVA-5 for the rest, used the 797 as a processor. Unbelievably good!!!
Your Onkyo 901 is a flagship product with powerful internal amplification and nettune capability. It also has a terrific front end, so if you want to use it solely as a processor down the road with outboard amps, you'll be shining.
As to the M60/QS8/VP150 combination, you have stumbled onto one of the great bargains in spectacular music reproduction art and technology - Axiom speakers.
My advice? Order them today and ENJOY THE MUSIC (and the movies)
