There is a new podcast up over at Packet Pushers called Wrath of the Data Center. It's worth checking out. The official description of the podcast is: "...the new podcast dedicated to the pursuit of the CCIE Data Center certification. The host of the show Tony Bourke brings guests to the show to talk about CCIE Data Center study topics." Even if you're not actively pursuing the CCIE Data Center cert, the podcast is still worth checking out because of the wealth of information coming from professionals who are in the field, which is always profitable for IT pros.
The podcast page can be found here.