I stumbled onto this URL and thought I share with you.... A lot of good resources on sql server 2005/2008/ BI /Data Mining /Performance Point etc http://channel9.msdn.com/wiki/default.aspx/Channel9.SQLServer
Here is another good one of its kind resource: Video recording of a upgrade lab ( to sql 2008) hosted by Microsoft Technogy Center(MTC). Lessons learned etc: http://blogs.msdn.com/mtcny/pages/sql-server-2008-upgrade-lab-april-2008.aspx To learn more about MTC : http://www.microsoft.com/mtc/default.mspx
Another one here "Microsoft SQL Server Community & Samples " http://codeplex.com/SqlServerSamples JasonL from Microsoft http://blogs.msdn.com/usisvde/ http://www.facebook.com/group.php?gid=20656045170 for ISV Developers