Use hunting cam (Score 2, Informative)

I've been using a IR hunting cam (3MP still camera with a movement sensor) for my cottage. It only saves the pictures on an SD card placed in the camera, but since it's well hidden it takes great pictures of trespassers without them knowing. I like the SpyPoint IR-A since the IR flash only lights up a fraction of a second so its harder to notice. Also I can hook it up to a 12V adapter (most other hunting cam only work with batteries). It a very good surveillance system for about 300$.