Is there such a machine?

I know a guy who is looking for a machine thingy that would hook up to his computer and shoot out a lazer/light show to the beat of the music.

Does such a machine exist?

try musiciansfriend.com. I think you could find something in the dj department. I know they make them for lights, but I don't know about lazers.

Z

yep they are usb try www.thinkgeek.com