I want to use a projector for use of my computer AND television. I know I'm gonna need extra speakers for the television audio (or maybe I can just use my PC speakers...). I think projectors have fabulous picture quality and I love the concept of custom screen size.

Anyway what kind of hardware am I going to need for this type of thing? And I know it's possible because every college does it.

I don't need anything spectacular just the minimum to put this into fruition.