I was looking for a receiver to go with Aperion audio 5.1 speakers, and they sell their packages with Onkyo, which, though I don't know too much about specifically, is supposed to be good. So could I go wrong with buying a TS-R600? It retails for 500 but they are selling it with the speakers for 400, so it seems like a pretty good deal. And upgrading to the 700 receiver (which they sell for $600) seems a little ridiculous when the speakers are only 1300. Thanks for any comments.