motion detection with webcam
During our latest show on Ustream, Andy mentioned he liked the motion detection software that had been available with some Logitech webcams. It's available, but only as a Windows Vista Gadget...
Motion Detector Gadget
Keep a watchful eye—even when you're not around. This Gadget acts like a motion detection sonar, triggering a recording whenever it senses movement within the field of view of your QuickCam. Recording stops when the motion stops, and an .AVI file is saved in a location you specify. The videos are even time & date stamped to help you keep track of what happened, when.
Also, take a look at the QuickCapture Gadget:
"...three-in-one Gadget...QuickPicture enables you to take snapshots with a single click; QuickCapture helps you to record, store and email videos; and QuickView shows you a live feed from your Logitech QuickCam. Use the QuickCapture Gadget to compose and preview your video communications, watch remote rooms and hallways in real time, or even create a "security" monitor by setting the time-delay recording function."