I think I posted this link a few years ago, but many new people have signed on to QT since then.
It is a link to the archives of "Live from Prairie Lights" in Iowa City. Some of the authors are famous, and others less so. http://www.prairielights.com/archive
All the readings are broadcast on Public Radio and the audience gets to ask questions after the author reads. I lived in Iowa City for seven years and went to a lot of these live readings, so you may even get to hear me asking some dumb questions.
You can also go to the home page and get a list of upcoming authors who will be reading in the store.