Weird, (fairly) repeatable iSight-related crash on Core Duo iMac...

Here's an odd one... three times tonight, my 20" iMac has crashed and rebooted in the same situation.
I'll have maybe three or four apps open at once, Mail, Camino, Safari, and iTunes. If I play music from iTunes, and then open Photo Booth, my iMac will restart about 5 seconds after the iSight turns on. There's no "please restart your computer" screen in different languages - it just restarts.
When OS X boots back up, the iSight green light is still lit, and it stays on until you open and close Photo Booth again. The other strange thing that happens is that a Finder window showing my hard drive and the network icon will appear, but in the aqua (not brushed metal) Finder window view, even though I did not have that window open prior to the crash.
Has anyone experienced this kind of crash?
System:
iMac Core Duo 20" Default Config plus...
2 GB RAM
256 MB VRAM
Wireless Keyboard and Mouse

System:
iMac Core Duo 20" Default Config plus...
2 GB RAM
256 MB VRAM
Wireless Keyboard and Mouse
I tried what you did (without Camino, I don't know what that is), had no problems.
System:
iMac Core Duo 20" Default Config plus...
1 GB RAM
128 MB VRAM
Wireless Keyboard and Mouse
System Version: Mac OS X 10.4.4 (8G1165)
Kernel Version: Darwin 8.4.1

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