If you're looking for a webcam that doubles up as a webcam, image capturing device and even a security camera, then you should take a look at CamUniversal.
What's really interesting about this app is that it includes a network server so that you can send images and viewing information from one PC to another which makes it an ideal monitoring device. There is a built-in motion detector which allows you to select which areas of the video are tested for motion, when, where and how. In this way, it allows you to target a specific part of your house or home without worrying about the consequences. The program also features video recording functions, picture capturing, external program execution, log file creation, sound playing, FTP transfer, email sending and there is also a scheduler. You can upload the images to an FTP server, a webpage or use a company LAN to distribute the images. Probably the only major problem is setting-up the software to work with your webcam - it doesn't seem particularly friendly with all webcams and you may not be able to get it up and running at the first attempt.
A useful webcam tool that doubles up as a security camera but may cause some problems during setup.