SQL Server What's New in 2005
Overview of new 2005 features
http://www.microsoft.com/sql/prodinfo/overview/whats-new-in-sqlserver2005.mspx

Tutorials
A basic SQL tutorial
http://www.sqlcourse.com

Coming soon - SQL Server task oriented video downloads.
http://www.SQLVideos.com

Communities - Great source of diverse information
sql junkies
http://www.sqljunkies.com

SQL Server Performance - Articles, FAQs, Forum
http://www.sql-server-performance.com

Change Management/Synchronization
Extreme Technologies - dbMaestro - freeware and pro versions
http://www.extreme.co.il

RedGate - SQL Toolkit - Free Trial, $350 to 3,000
http://www.red-gate.com

ApexSQL - SQLDiff - Free Trial, $299
http://www.apexsql.com