I'm planning an AVR+Speakers+Sub system for my den. We watch a lot of movies in there, but it's by no means a theater room... the layout has the TV in a corner, with seating on couches against the walls. I want to avoid wiring up rear speakers, at least for now. So far, I've been considering a sound projector, like the Yamaha YSP-1000 (or -800) plus a sub. I plan to demo a setup like this at a local store. If I'm not happy with its performance, I will probably pick out a receiver, speakers, and sub instead. If I go with the receiver/speakers/sub, would you guys recommend a 2.1 or 3.1 setup? My understanding is all DVD players can downmix Dolby Digital 5.1 to just about any combination of channels. I'm leaning toward 3.1, because I've read that DVDs tend to be mixed with most (if not all) dialog going to the center channel. Should I expect any audio 'weirdness' if I were to get a 5.1 receiver, and just use the front left/right, center, and sub outs? Would 2.1 from a 5.1 receiver be any better? Or a dedicated stereo receiver? Thanks!