Now that I'm involved in a boardgaming podcast as well as the role-playing one, and all recording is remote, I've been recording multiple tracks and editing them together.
I've been podcasting for over four years now, I'm now getting game recordings together for the Whartson Hall Æthernauts too, and I hope some of this advice may be useful to people who are getting started.
The Tascam DR-40 is a four-track digital recorder that I'm using for podcasting and game session recording.
The podcast for which I do sound tech (yes, all right, I'm also one of the speakers and writers) sometimes uses old recordings as interstitial music.