Read the "How the damned thing works.". (actual title of the page)
What we would want is a digital camera with high definition that can be run in a kind of "slave mode" where exposure is controlled by our custom software. Ideal would be a 4 megapixel web camera that can save uncompressed pictures. We want 1080p video, don't we.
I believe there exist ordinary digital cameras that can be put in a "webcam" mode.. but I have not found any info on them yet.