EasyCap USB video adapter (model DC60) from DealExtreme and gave it a try... not bad for a $9 piece of equipment. Here's some random notage:
Mac EasyCapViewer is here. It's a port of the reversed-engineered linux version. Seems to work pretty nicely. has record mode.
There seems to be a lot of variations in model numbers, features, video resolutions, etc. Not sure what they all mean, but seems to affect which drivers, etc. you need. It seems the DC60+ doesn't work on Mac at this time.
Includes a CD with ULead for windows. There's also a drivers directory which seemed to install the right things on Windows 7. I installed that but not the ULead software.