CCTV = analog signal. Even if your computer has one of those capture cards to allow DVR functionality of the cameras, you still won't be able to view all 3 (or possibly any of the cameras) through iCam. iCam works with IP cameras and USB webcams...both of which are digital in nature. It is possible to use a capture card as a camera source, but if I remember correctly, nobody has been able to get a multi-capture card to feed more than one video source to icamsource. It's an issue with the drivers provided with the capture cards or something like that. Just don't expect any form of stability/quality if you try to use it. I don't remember reading any posts on here in which someone had good success getting these working. It would be better (although a pain) to switch to IP cameras. But for great stability, you'd want the cameras to be wired...not wireless. So the cameras would require a cat-5 feed, as well as a nearby electric outlet.
