There have been a few releases over the last few days for some SQL Server 2008 tools that you may be interested in. The first one is the 2008 R2 Best Practices Analyzer found here:
http://blogs.msdn.com/b/sqlreleaseservices/archive/2010/06/19/sql-server-2008-r2-best-practices-analyzer-is-now-available.aspx
And the second one is the 2008 R2 update for the developers training kit found here:
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=fffaad6a-0153-4d41-b289-a3ed1d637c0d
Have fun,
Andrew J. Kelly