Use ANT to subscribe to your favorite videoblogs
ANT is an RSS video aggregator and media player currently available for Mac OS X 10.3 Panther.
With ANT, you can subscribe to any RSS 2.0 feed with enclosures. ANT will automatically download fresh audio and video content for you to watch and listen to. It can playback any media format, and syncs audio files with iTunes so you can easily add them to your portable MP3 player.
Also available for Windows. Pretty neato. 🙂