Thanks for the input.

I should have mentioned that the 3 speakers in the exercise room will be 2-channel speakers. I plan on running the signal to a speaker selector, out to the exercise room.

I'll call Axiom for more advice on power. I'm tempted by the plus. How could you ever go too low???

I'll have to think about how good a picture I want in the exercise room. The LCD is an HD so I should take advantage of it.