Are you ready to experience SQL Server 2005?
Announcing the launch of the SQL Server 2005 Virtual Hands on labs. In these labs, you will get to experience many of the new features in SQL Server 2005 including CLR integration, XML support and deep business intelligence integration.
Just follow the link and experience SQL Server 2005 for yourself
Update 11/11/2008 - new links.
SQL 2005: http://technet.microsoft.com/en-us/bb499681.aspx
SQL 2008: http://www.microsoft.com/sqlserver/2008/en/us/virtual-labs.aspx