download with google video downloader and convert from flv using
freeware tools if you want to save a buck or 4. Just get video link the
same way you used to and put it into the google video downloader.
Here's the Link, but be patient. The digg effect is in full force. If you need a standalone FLV player, you can get one here. Here's another Google video downloader, so you can start collecting those FLV files. Don't like FLV? Here's a howto guide on converting to AVI.
UPDATE: Here's a page where you can download tunes from YouTube, Google Video, and iFilm.