Bloomberg has jumped into podcasting with both feet. They have trolled out numerous podcast this year, and more are probably coming. (I harbor a suspicion that I had a teeny little something to do with it).
A few I have checked out: market discussions on Odd Lots, with Joe and Tracy (Bloomberg and iTunes) and technology focused Decrypted (Bloomberg and iTunes) are filled with good stuff. Add David Rubenstein’s Peer to Peer interviews — they are essentially filmed podcasts.