Chloe, my sweetheart of a cat, knocked our vintage 2002 iSight webcam to the floor as I was using it to videochat with my parents. It’s dead. I still have to do a couple of tests, but it doesn’t appear on the firewire bus of any of the computers I have checked it on, with differernt cables. Googling for repair options yields only info on the new, monitor-embedded iSights. Aargh.
On the other hand, maybe this is an excuse to shell out for a firewire DV camera.