Talking the Walk

Okay - I'm jumping off into the world of multimedia by recording an audio tour of Transcendentalist Concord. I will be recording narration for the North Bridge, the Old Manse, Walden Pond, Bush House, the Concord Museum, the Wayside, the Orchard House, and Sleepy Hollow Cemetery. Each stop along the tour is about 5 minutes.

I am doing it on my freshly-delivered iMac with Garageband. Is that the best option? What all do you use? Suggestions? Who has had success? Share your links to podcasts, mp3s and whatnot, and I'll check 'em out.