I am looking to update my HT with an HDMI based system and am posting this to get some recommendations on an av receiver. Currently, I am using a B&K AVR 505. I have 5 Triad in-wall speakers and a Velodyne sub on the floor. The 505 only has component out and is not upgradeable. I like the B&K sound, but don't want to shell out $4-5K for a new 705/707. I have done a little reading on the Yamaha Aventage and Denon 3312/4311. My main concern is, would they deliver a comparable audio experience? The networkability and Rhapsody integration is really appealing.