The great DC bookstore has been putting recordings of its talks online.
Jim Woodring at Politics and Prose
This is an audio recording of Jim Woodring speaking about his book, Congress of the Animals, at Politics and Prose on September 9, 2011.
And here's a ComicsDC contributor:
Warren Bernard at Politics and Prose
This is an audio recording of Warren Bernard speaking about his book, Drawing Power: A Compendium of Cartoon Advertising, at Politics and Prose on August 25, 2011.