Just an FYI that I posted a note about Cumulative Update 1 for SQL Server 2005 SP3 on our new ConfigurationMgr blog:

http://blogs.technet.com/configurationmgr/archive/2009/01/07/cumulative-update-package-1-for-sql-server-2005-service-pack-3.aspx

Enjoy!

J.C. Hornbeck | Manageability Knowledge Engineer