I've been looking for awhile for a good piece of software for home (and work desk for that matter!) security monitoring. You know the sort - it takes in webcam feeds and as it detects motion in the field of view it either starts snapping away with photos or records live video of the potentially offending person. I found Active Webcam on Cnet downloads. Eval period is 30 days.
The things I liked about it
I couldnt really find anything I didnt like actually. Check it out for yourself!