Well I've started finishing my basement to include a dedicated theater room. It's been almost a year, with procrastination and my bank account being the reason it's taking so long. Here is the basic layout of the room that I whipped up in Visio. The room dimensions are not the best but I'm maximizing the space I have. A wider room would have been nice, but building around the furnace and allowing room for an average sized bedroom/den and bathroom were limitting factors.