I enjoy the Podcasts from SXSW, but on the current 2009 SXSW website, you can't actually subscribe to a podcast feed and have them automatically download in iTunes.
In order to fix this problem, I created a Yahoo! Pipe that finds the mp3 file under each item and then reconstructs a feed that includes the audio file as a podcast enclosure.
You can subscribe to the feed using the options below.
...or subscribe via iTunes.
Here are the latest three entries in the feed: