cabal,
the speakers you have choosen are great, i have the monitor 7's with the cc370 and love them. As for the receiver, I have not heard sony, but from what i have read here, denon is preferred, and a great match with paradigm. Also consider yamaha, as they match well with paradigm. I personally like the sound better on the yamaha than the denon, but just my opinion, although i think the denon is cleaner sounding.