SQL Server 2005 SP1 is now generally available for download via the web at:
http://www.microsoft.com/downloads/details.aspx?FamilyID=cb6c71ea-d649-47ff-9176-e7cac58fd4bc&DisplayLang=en.
Additionally, a number of Knowledge Base articles could be useful:
- List of all new features and improvements by category:
http://support.microsoft.com/kb/916940/en-us
List of all changes by bug number: http://support.microsoft.com/kb/913090/en-us.
