are you running wire or "fishing" wire through dry wall.

If you're doing fresh wiring -- than by all means 7.1!!

And, before you buy the extra 2 axioms for 7.1, just use a set of old speakers so you can better understand what effects your room will provide for a 7.1 environment. then step it up with 2 more QS8s!!

I love 7.1. I just think it adds more depth to the sound tracks.

Good luck with your project. Are you going DLP or LCD on the projector?