During the past few weeks I've been delivering the Smart Client session at the Heroes Happen Here launch events around the southeast. Here are several good articles and videos related to that session. Also if you find any that I missed, please feel free to suggest them via a comment.

Part 1 - WPF with Visual Studio 2008

Part 2 - Using Windows Vista APIs to light up your applications

Part 3 - Workflow Services with WF and WCF

Part 4 - Occasionally connected applications (OCAs)