Be careful with sync if you choose the video card to monitor method. I have seen variations on timing with different cards running simultaneously on one Mac. You really need all video sources fed from one card. For the editing, I think you'd be better off viewing the firewire output from a Canopus convertor or even looped through a camera. Final Cut knows how to sync FW, and may or may not work well with a particular output card. R. B.