Thanks Mike.
I looked over that page you lined to, but still have some questions...
I'm still going to use the old site, but for different purposes. So, I don't want to do a 301 redirect for the entire site.
Is it possible to just redirect the podcast RSS without redirecting the entire site?
I don't want to use the iTunes 'new url' approach, as I know some of my traffic (although much less) comes from stitcher.
Suggestions?