I haven't found any on iTunes that I particularlly like. But I LOVE the one from Jillian.
Unfortunately it isn't available through iTunes. You have to download them manually. Go to http://www.kfi640.com/main.html
and click on "On Demand" – “KFI on Demand”. Then scroll down to the Sunday section at the bottom of the page. You can get the latest one there or click on >>>More to see past shows.