Can anyone recommend a security camera connected to an iMac from 50ft that does NOT rely on an internet connection? I've got a restaurant which has an office in the back that needs a view of the front entrance. I currently have a Dlink DCS-933L however it sucks up a LOT of bandwidth which is redundant considering I don't require a view from anywhere but the restaurant office. Dlink doesnt offer any software for the mac to view the camera using a LAN connection (stupid!) Any suggestions? Perhaps a simple RCA cable security camera running to a small 13" TV? Could this be done through something like an ADVC55 with Vidi? Thanks!