Microsoft has published some free webcasts, that will give you a preview of what you can learn at Tech-Ed 2006 in Boston in June 11-16.
These pre-Tech·Ed 2006 webcasts enable IT professionals and developers to explore current and soon-to-be-released Microsoft technologies and evaluate a wide range of products and solutions for todays IT environment. Get up to speed on Microsoft Windows Vista, Microsoft Office “12”, management and operations, security, server infrastructure, and more. Well also webcast select breakout sessions live from Boston, so check back soon.
See them at source: Tech-Ed 2006 Webcast Series