Yeah, I tried that too. Nothing turnsoff the Sorcerer's Aprrentice - it just keeps downloading everything.
So I've installed gPodder and it lacks some feature but at least it isn't iTunes. And I've kept it completely separate from anything iTunes.
The nightmare about transferring podcasts is always getting the urls for them again. I could export from itunes but that keeps the links to itunes. However, I found out that one can select with shift-click the whole list of podcasts, right click and choose "copy url" and then open notepad and copy the urls there. Save the file and you have a list of urls that can be used anytime, anywhere. Wohoo!
In the process I discovered that NPR now has a podcast directory that includes all of its partner stations. I discovered 3 local(rural) podcasts I did not know about. So sometimes change is good.
Gpodder plus media player does the job with no nightmares so far. In the meantime I'm armed with a list of urls I can use anywhere. Once Carbonite finishes restoring the old podcasts in itunes that were lost I'll transfer the ones I want to keep over to media player.
Free, free at last.... well sort of... The Prisoner
I should mention that by leaving iTunes most of my album cover art has returned.