GenieClips + Hat Channel (not fully done in this pic). We also did R-MAX insulation for the 2 exterior walls (more for heat than sound), as the ceiling will still catch everything since it's wall to wall.
I also ran 2 conduits to each room of the addition for future expansion, and ran a 2 conduit for the projector, along with electrical romex for a Panamax MIW-XT power extender, which allows me to run the power from the projector back to the same power conditioner.
I originally planned to put the components in the back closet of the room. However, we were able to squeeze a small half bathroom down there, which was more important. We are going to put the components in custom made cabinets in the back corner of the room.
This is where we are at now. Drywall has been installed, and now it's on to tape/texture.
Regarding all the hardware, here's what we are going to have:
Projector: JVC-65U with Panamorph automatic lens
Screen: Most likely 133 Screen Innovations 2.4:1 Black Diamond 4K
11.2 surround - 3 Definitive Technology In-Wall RLS II speakers (front, left, front), 4 Definitive Technology In-Wall RSS II (side rears, back rears), 4 Definitive UIWBP/A Bipolar for front & rear presence speakers, Definitive SuperCube 2000 Sub (for the rear, had to go smaller due to size restraints), and Definitive SuperCube I for front. Originally I wasn't going to go 11.2 and just 9.1 or 9.2, but figured I might as well just max it out right away.
Yamaha Adventage RX-A3010BL
Some separate AMP for the rear presence, as the Yamaha receiver only does 9.2 natively
Oppo BDP-93 Bluray
Monster Power Conditioner
DirecTV HD DVR receiver
We plan on texturing tomorrow or Thursday, and then get the upstairs doors (for the guest bedroom, storage, and full bath installed). So it may be a week or so until any more updates on the theater room front...