USENIX has made available an audio recording (in MP3 format) of the Incident Command for IT: What We Can Learn from the Fire Department invited talk (Adobe Acrobat PDF format) that I did at the 2005 LISA conference a couple of weeks ago. You'll want to skip past approximately the first 3 minutes (2 minutes, 56 seconds, to be exact) of the recording, which are silence and administrivia announcements from before the start of the presentation; it would have been nice if USENIX had edited that out, but they didn't.