both laptops have independent video output. so they would have to be muxed together to be displayed on one projector. this would require a video mixer or a 3rd computer with some sort of capture card. anyways it will be convoluted, expensive and slow (if you use a capture card). a better setup would be 2 dj's + 2 laptops + 2 projectors. using ME's advanced output, or more advanced vj software (resolume avenue or madmapper), you could do some pretty dope things.
