I stumbled across Gcast a few months back, and I love it! So far, I have not been limited to a certain number of posts, or a maximum amount of space that I can use.

It is supposed to used in conjuction with Garage Band as a way for new musicians to get their music out to their fans... I use it as a way to put out our sermons for ridgeviewchurch.net each week.

It has a real simple player that can be added to any website, and automatically updates itself when you add a new podcast. all I have to do is get my service in an MP3 format, and the rest takes care of itself.

Check it out!