You did a super job choosing all you equipment. I'm familiar with almost all of your pieces. I likewise dreamed of the Mac integrated w/ HD tuner, but probably in my lifetime. I wish it was available in the 6300, but then again it is still out of reach.
What speakers (different room?) do you use with the Emotiva? Incidentally, I've alway been concerned with swapping speaker cable on the back of a high-end amp or speakers. Are you not concerned about wear from banana jacks, or do you use the 5.0 system so infrequently? I also use a 5.0 system, though the electronics are budget, and am fine w/o a subwoofer to not drive the neighbors crazy in our row of townhomes. Lastly I use a mismatch of speakers in our HT with good results too.