I am going to build a sound room off my living room. It will be 17 or 18 feet by 10 feet. What are the pros and cons of windows? I have a 4 ft. by 5 ft. window that will be taken out to build it and was going to put it in there?? I have a 57 inch Toshiba high definition T.V. but want to put in a projector with a screen. Would that be a big improvement? (Worth it?)My surround speakers are presently behind me, should I place them to the side instead, and have my one rear speaker at the back?