I do that too.
To tell you the truth, this is all you need for a podcast:
Skype + Pamela Call Recording
Audacity(in case of adlibs and/or cutting)
Sony Acid Express(free) to render the final mp3 with theme music etc.
I could co-ordinate shows but I can't take on any recording of my own yet.
you need to feed your baby..
There's another on the way. I'm all gray haired and shit. I'm done after this one, though.