Ron Jacobs (blog) from the patterns and practices group has been producing a series of podcasts with .net patterns and practices in mind, that compliment his webcast series. I've listened to the first two so far, and managed to get well lost in the second one. Although the concept of dynamic config is interesting, I really need to find those blog posts :) Either way, there are two more, and I'm sure they will be quite technical if they follow the lead of the first two.