Maybe I'll try podcasting in the classroom?

I have never podcasted before.  I have used Audacity to record my class doing different reader's theatres which they love because they can hear themselves but I have never published these.  While reading Blogs, Wikis, and Podcasts by Will Richardson this semester I have had so many wonderful ideas!  One of them was to use podcasts to as a final assessment for my annual poetry anthology unit I do with my 6th graders.  I wrote the lesson this week and now I am super excited to implement it.  The kids will create their little bare back book like they have the past two years in my classroom but this year they will become digitally published poets for a local coffee houses' XM Radio Station!  I think this is going to be a fantastic way to introduce podcasting into our curriculum and I am sure the kids will come up with numerous other ideas on how to use podcasts once we have conquered this one!  My clear outcome for this is to have students write poetry and reflect on their work by picking out their favorite poem they have written to publish as a .wav file.  What other outcomes would work for podcasting?