Podcasting in Gaylord, Michigan

How I would like to begin using podcasts/screencasts as a librarian:

4-6th and 9-12 grade buildings- booktalks, reading short selections of books, inviting students to create booktalks, research skill reviews and hints, new events in the media center....other ideas you would like to share with me?

How I would like to encourage teachers to begin using podcasts/screencasts: capture lecture (for review by students absent or needing review), anticipatory set type material (to capture interest and promote better understanding of classroom activities), student produced podcasts (to provide a wider audience than just the teacher and promote deeper understanding of material)...other ideas you would like to share with me?