So I'm about to move into a new house, and I'd like to turn the finished attic into a home theater room. The set up for the room will be pretty standard, 120" screen, 1080p 3-D ready projector, 7.1 surround sound network receiver, and an HTPC. The problem is, I am used to building gaming rigs and don't know very much about the type of system that would be best for a HTPC. So I have a few questions:
1) What is a good build as far as components are concerned? I understand that this will vary from purpose to purpose, so I suppose I should state that I intend to use the computer primarily for watching movies (blu-ray and 7.1). However, it would be nice to be able to play modern games on at least medium settings in the event that I feel like playing Diablo 3 on a 120" screen.
2) If the motherboard has an hdmi out, is this sufficient for supplying the 7.1 receiver with HD audio, or will a nice sound card need to be added in order to take full advantage of my speakers?
3) Is it worth going to a mini itx mobo and tower for the sake of looks and space, or will it severely limit the performance of my HTPC?
Bonus question that has nothing to do with the HTPC itself: Does anyone have a suggestion for high quality home theater projector? Is there a certain brand or model that performs best and has the sharpest image?