If you've ever wanted to save YouTube videos to your computer or be able to use them on your iPod, MP3 player, or iPhone, now you can. Tubetilla is FREE software that lets you do just that. No spyware, no adware, no registration - just free.
I haven't tried it yet, but I think this software could come in handy one of these days. There are some video tutorials showing how to use it, too.