I've started listening to the PASS Summit DVD sessions during my commute. By accident, I discovered that my Sansa Clip+ mp3 player has a playback speed option while listening to the Lightning Talks.
Buck Woody, Brent Ozar, Adam Machanic are great speakers but the fun begins when you change the playback speed option to FAST. It really sounds like Helium has been introduced into the room. It's really entertaining, you can still understand the speakers and you get through the content quicker.
One final note, Michelle Ufford must have been talking REALLY fast.