haha. I've built a projector before. that was fun. due to the nature of the beast, one of the lcd FFC ribbon cables broke and i decided not to fix it. but it cool regardless. i never got a chance to watch it on a nice screeen, but it did look really good if you had no ambiet light at all.
http://www.turborocco.com/projector/
Next on my lists are Acoustic panels