Is it possible to have the video ouput of one computer passed to another computer ? I would like to pass the output of a laptop computer to another computer so the second computer can scale the image and then output it to a projector. I would also prefer the solution to be wireless if possible.

well, using conventional hardware, i think you'd need to use a capture card.

i'm not so sure you want to use this method though; even if you use the best port (dvi-out to dvi-in, if that's even possible), quality may degrade and there might even be some lag as well as dropped frames.

i don't think there's hardware to pass and receive raw video signals.