There have been a spate of burglarys in my street recently and I was thinking about setting up my own security.

I was thinking about setting up a webcam which would take and save image files whenever there was movement. I could then, I think, write a windows service to upload these images to a remote server so if the computer gets pinched I can catch the gits.

Does anyone know if this is feasable ?
Can I get webcam software to detect movement ?
Are there any better approaches that don't involve killing people ?