I am starting to design/build my first HT so I will have lots of questions. My HT is going in a new basement. I have read alot of things about flooring but many talk of products I have never heard of. At present I have concrete walls and floor. Any suggestions. (would like carpet unless that is a bad thing) but do I need to put anything under it? Walls I plan to use 2x4's and insulate all around.. I will have a staircase in the room and will make an equip. rack with access under the stairs, But being that I live in Maine we have no central A/C how can I keep my equip cool? Also how bad are the stairs for accoustics? Will be buying a 4805 but want to wire for it now. What sort of connections/cables do I need? Also my mechanical room is behind the HT so unless I change the plan I will have one door on each side wall. should I make this the front or rear of the room? Or should I change the layout so I only have a single door? (I am concerned as this will mean I have an odd shape room, I would need to cut off a corner of the room... insted of a 90` corner I would have 45` corners 3 feet in.