it appears you need a card like this to use the hdmi output as webcam input (1080i/50fps) http://www.blackmagic-design.com/product..., it appears the software might support multiple cameras, $189 each http://www.buydig.com/shop... - David Lynch

I'm thinking 2 dslr 60fps 1080p's would be interesting, but they don't make those, and the lenses would be too far apart, if cameras placed side by side. - David Lynch

I would assume a z-drive or a dedicated 64gig slc intel ssd would be in order. - David Lynch

2 of these jvc $600 would do the trick 60fps 1080 http://www.newegg.com/Product... - David Lynch