Was noseying around websites for previous DrupalCon’s and found that previous events have video available hosted on the archive.org site. Even better, archive.org offers RSS feeds based on queries so to get an automated podcast download of DrupalCon chicago 2011 you can use e.g.

http://www.archive.org/services/collection-rss.php?query=subject:drupalcon%20chicago%202011

The Chicago video alone is 48 sessions and over 11GB of MP4s chock full of Drupal goodies…I may be gone for some time 🙂