One or two of these podcast could pass an hour or two while working on the computer or tying flies. There is one by April Vokey, settle down Alan, I never knew she had lost a foot in a car crash.
http://www.itinerantangler.com/podcasts/podcasts/ (http://www.itinerantangler.com/podcasts/podcasts/)
Some more here.
http://www.murraysflyshop.com/podcasts/ (http://www.murraysflyshop.com/podcasts/)