In my life I have yet to hear a speaker better than the Meridian DSP8000. Meridian came for a demo and the first thing they did in the store was to hook up a McIntosh MX134 with matching amplifier to a set of B&W 801s... Then ran the same source to their Meridian and the McIntosh/B&W system.
They cranked it up, and then A/B'd the setup and the quality improvement between the two was amazing - the Meridians blew away the other setup.
$65,000 a pair. The full 7.1 setup will set you back around $200 grand or more.
If you are going to do it, then a full projection setup using a Stewart Cinecurve front projection, or their Starglas rear projection system would be a requirement.
Match it up with a real projector. Not some Vidikron rebadge or Runco built to fail product, but how about a Digital Projection Lightning 40 1080p 3D projector? 249 pounds, and 3 DLP chips mated to a 8,000 lumen 4,000:1 native contrast ratio engine.
http://www.projectorcentral.com/Digital_Projection-LIGHTNING_40-1080p_3D_Ultra_Contrast.htm
Over $100,000 without a lens to put that into your oversized home theater.
If 10,000 lumens is to many, your theater is to small.
I have no real issues with JBL Synthesis systems either if we are going to do this on a budget.