sqoverall: Pioneer was using B&O ICE Amps in there receivers for awhile and of course one of the huge advantages that I am sure you know about is heat, Class D Amps don't give off much heat and with all that other Digital gear in there that does produce heat it comes in handy, the Pioneer I had was great on Home Theater playback but not so good on music. I ended up switching to a Marantz Receiver and most likely will upgrade to another Marantz once I jump in the 4K pond, which won't be that soon!
LSL#1: I am going to try out the NA8005 Network Player by Marantz I will use it in my main system for now and when these get more stable in the downloading HiRez world (If that ever happens!!) then I will move this in with my 8004 Int, Amp that is in my office. I heard good things about the Meitner and I just recently heard both Bryston units along with the new NAD M50, both nice but for how much your spending lacking in certain areas. The Marantz has a decent Dac, does just about every HiRez file and I think you can using it for a pre/amp as well.