Home Theatre System Using Laptops
Ben Falkon writes "This article takes a look at the possibility of turning a set of laptops into a home theater system. Considering Nelson Chang and the team at HP have had success with running projector party, I don't see why this is not possible. The only problem that I can see is that laptop speakers tend to be weak — then again, modern laptops are gradually being fitted with powerful speakers in these days, so that does not bother me much. A comprehensive discussion follows at the end of the article."
People have been building HD projectors for a while using old laptops. (Also using old LCDs etc).
http://www.engadget.com/2006/10/17/how-to-build-your-own-hd-projector-part-1
http://lumenlab.com/projectors/