Use WebCam as Motion Detection Camera and Start Auto Recording

You can use your web-camera as an auto motion detecting surveillance system. All that for free.

ContaCam is a free surveillance software that can turn the webcam into a motion detection camera with automatic logging and custom alert options.

• ContaCam can monitor the area within the camera view and automatically record whenever it detects any motion. Recorded video can be saved in AVI or Flash format.
• The video then can be sent to email or FTP server automatically. 
• You can also choose to capture still images at regular predefined intervals. 
• ContaCam can also be used as the video recorder for 24-hour recording, schedule recording. 
• It supports customizable detection zones, snapshot editing, video settings, detection scheduling, network streaming, audio recording, and more. 
• It is free, lite and easy to use. It runs on Windows.

You can download it HERE.