whoa...thats pretty serious...not really a home theater, more of a music studio. Those are more of a DJ set up. I would say that you would probably need an external amp to power something as serious as those, especially at 4 ohms. I guess you could hook those DJ speakers up on the B-channel...
if i understand correctly.... you will have to connect the whole system in analog, as in each channel will have to hooked up with its own RCA cable. You can't use a digital line for the mains, center, and sub, and then use an analog cable for your surrounds. I don't understand why you need...
Receiver i would go with either the 663, or the pioneer 1018, which you can pick up for under 400 from the factory until the 27th with a coupon! I personally will be picking one up soon after a long debate between that and the 663, but imo, the 1018 wins hands down. Speakers is all about...