I always prefer written interviews to spoken. I just feel like I’m much more concise and entertaining. Plus, I’m not a big fan of my own voice. 😛
That said, when I was at the "Little Comic Shop of Horrors" even at Dragon’s Lair last weekend, they put together a podcast with a few guest interviews, and I was one of them. If you’re interested in hearing me talk about gaming and D&D–and can tolerate listening to me–you can find it here: http://www.dlair.net/laircast/laircastrss.xml
I haven’t listened to it myself, so if it’s awful, be kind in telling me.