Just finishing up my dedicated 2-channel and home theater room. It is an 11x14 "den" that we had framed with a door during construction. We were also able to have the surrounds and ceiling speakers pre-wired. I was planning on going the projector route, but with a 100" screen, I would need to cram the mains into the corner, which I didn't want to do. Not to mention dark paint etc, and I didn't want to black out the room. Instead, I opted for the Sony 85X900F and I think it fits the room and wall nicely. Seating distance is 9-10 feet away. I was rolling with a Rotel Pre-Amp but the need for an Atmos processor pushed me towards the Marantz SR7013. I'm still using a Rotel 1075 to power two of the height channels.
For speakers, I'm using some old B&W 704's with the matching center. The four surrounds are B&W CWM 663s and the ceiling speakers are RSL C34s, which are larger than I thought they would be. I had some store credit to spend so I'm trying out the Golden Ear Supersub X. I don't have a lot of room behind the couch, so something smaller was necessary. It doesn't get super duper low, but it is loud and shakes the room nicely.
For a disc spinner I'm rocking the Panasonic UB820 which is a fine machine, but lacks SACD and DVD-Audio support. I have an Oppo 203 in the living room which I will add to the mix once a cheaper player with an HDR optimizer comes out.
Vinyl is played on a VPI Traveler with an Ortofon 2M Blue cart. Pre-amp is a Vincent PHO-800 and cabling is Audio Quest. A Harmony Elite rounds out the equipment.