Eric Hanson has created a series of SQL Server 2008 data warehousing videos posted on Channel 9.  They cover data compression, backup compression, star join enhancements, parallel query enhancements, change data capture, grouping sets, and partition-aligned indexed views.   Quick and informative videos to get you up to speed on SQL Server Data Warehousing.  For these videos, checkout http://channel9.msdn.com/Search/?Term=eric%20hanson   Enjoy!