what does your projector have you video inputs. DVI,VGA,RCA,svideo, any 4 of thoses and your good as long as you computer has the same. most computer will have a dvi and vga on the onboard video card and most off board video cards have s video and 2 dvi and a dvi to vga adaptor.
i hope to set my room like this in the future for gaming. alot cheaper then a big 62 inch.