The Rasberry Pi or RPi for short is an amazing little unit. It can be a desktop, thin client, server, or a multitude of other devices. It is a sort of jack of all trades. At http://www.instructables.com/id/Raspberry-Pi-Jack-of-all-trades we look at some of the options of what the RPi can do. One such option is to let the Rpi be a private eye or spy device. Compared to some the commercial video units, it is a bargain in price.
Security is an important subject these days. With the RPi you can easily install yourself a spy setup without bringing in an expensive consultant. Check it out.