The Freethought Association of Michigan has put a video of the talk I gave to their group on January 24 of 2007 at the Women's City Club in Grand Rapids, Michigan. You can download it by going to the Freethought Association Past Events page dedicated to this event (Richard Carrier on January 24, 2007, "Sense and Goodness Without God") and right-clicking the link there to download the mp4 video (