Everytime I think I know what direction I'm going to go in I read something that makes me re-think what I was going to do. At this rate I'll never get started.
That is what I call Home Theater Inertia, I suffered from it for a long while. Eventually you just have to start building and accept the fact that you may not do everything just right. You can drive yourself crazy with the whole sound isolation and acoustic treatment thing (1/2" drywall or 5/8"? Is Green Glue worth it? Should I build boxes around my can lights? etc, etc, etc.). Sound isolation is not as hard as you would think, but it does take some reading. As far as room treatments, do what I did. Hire someone smarter to do the design for you. Best $200 I spent during the whole build.
