Using Microsoft Movie Maker to create enhanced podcast --step by step instructions. Note: You will need to use a separate program to convert the file from a .wmv format to an mpeg-4

How to podcast-free online tutorial -- by, Jason Van Orden, author of Promoting Your Podcast. I haven't gone through the entire tutorial, but found the Audacity section to be very helpful.

Blogtalkradio

BlogTalkRadio is the social radio network that allows users to connect quickly and directly with their audience. Using an ordinary telephone and computer hosts can create free, live, call-in talk shows with unlimited participants that are automatically archived and made available as podcasts. No software download is required. Listeners can subscribe to shows via RSS into iTunes and other feed readers. Our network has produced tens of thousands of episodes since it launched in August of 2006.

Podomatic

PodOmatic offers free podcast creation, hosting and iTunes integration. Pretty simple to use. For the free accounts, they make their money by showing ads when people listen to your podcast.