iSentry

iSentry Pro is a webcam security system for the Mac. Use it to instantly turn your computer with web camera into a motion-sensing security system. Just launch iSentry Pro, point your camera to the region you want to monitor, and prepare to receive a video or photo should any motion activity is detected. With wide selection of settings, iSentry Pro allows you to configure quality of pictures and video clips, enable sound, alerts and receive email notifications about the events detected. Also you can set up a recording schedule, use IP camera as video input device.