In the spirit of the release of VS 2008 RTM version, a VS2008 Training Kit has been released as well. It is a nice collection (self-extracting, 125MB.)
The Visual Studio 2008 and .NET Framework 3.5 Training Kit includes presentations, hands-on labs, and demos. This content is designed to help you learn how to utilize the Visual Studio 2008 features and a variety of framework technologies including: LINQ, C# 3.0, Visual Basic 9, WCF, WF, WPF, ASP.NET AJAX, VSTO, CardSpace, SilverLight, Mobile and Application Lifecycle Management. Download it.
You can also enjoy the relevant screencasts on Channel 9: