Trevor - reading through the thread - this seems the revealing question:

"I Guess the question comes down to is the dolby surround or Auro upmixer a better presentation with real channels than Omnis for music in a comparable system?"

The actives are the most amazing music makers, and they are also wickedly efficient. I would be tempted to go actives with ADA-1000-5's and a pair of EP500's. You are in super speaker territory, and with amazing music ability.