ok, so let me clarify -

I should be ok with front R&L towers, a front center (consider a tower vs vertical speaker), side R&L, and 2 REAR speakers...

The rear speakers should have some sort of reasonable distance between them, almost as wide as the front R&L...

Is that what I gather?

Now I know that very few movies are in 7.1 or even 6.1...so down the road, how will the above mentioned setup be effected? Does this setup allow for some "expansion?"

Also, how does it hook up behind a receiver like the denon? What speaker outs do they have?