Tim Farley's presentation from Skepticamp Atlanta 2011, along with introductory material from the beginning of the event.
Handy in-video links, click the timestamps to jump...
Denver intro video (featuring Chupacabra!): 3:05
Main presentation starts at: 6:26
Q&A after the presentation: 32:16
The slides from this presentation and some additional links for more information can be found at my blog here: http://skeptools.wordpress.com/2011/06/15/please-dont-start-blog-podcast-skeptic-skepticamp-skepticality/