I recently delivered a webcast on SQL Server "Yukon" using the new Microsoft LiveMeeting technology for a UK developer audience. The webcast covered the integration of the CLR into the Yukon engine, and also briefly covered some of the new T-SQL enhancements and the new support for XML as a native data type. There are a few demos included too for those who haven't had the opportunity to explore this technology yet. I always find it really hard to deliver presentations without an audience - you get no feedback and that makes it hard to keep the momentum going, but I feel like I'm starting to get the hang of it.
Anyway, the webcast is now available for viewing on-demand from the Microsoft site. You'll just need to fill in a few basic details to register to view. Not sure how long it will be available online, but I'd have thought it would be there for at least the next month or so. If you've watched the webcast and have some questions, feel free to post them in the comments section below and I'll do my best to answer.