“Writers on Writing” on KUCI is an excellent regular program, on which many great writers–Tobias Wolff, for example–have been interviewed at length. There’s a regular podcast to which you can subscribe for free. If you’re interested, check out their schedule:
The interviewers are sharp: they’ve actually read the books and they ask great questions.
Here’s an interview with me (on Jenny and the Jaws of Life) from January 28, 2009. It’s the second half of the interview–you must FF past the music, etc.