Plan your upgrade from Windows Server 2003 domains and forests to Windows Server 2008 R2. Bring a new feature set to the table.
If you are still managing a Windows Server 2003 domain and forest, it’s time to look at upgrading to Windows Server 2008 R2. There is an array of new features and improvements in Windows Server 2008 R2 by itself, beyond the enhancements brought specifically to AD. Windows Server 2008 adds fine-grained password policies, read-only DCs, restartable AD services, snapshot viewer and more. Furthermore, Windows Server 2008 R2 includes an AD recycle bin, Active Directory Administrative Center, Best Practices Analyzer and the PowerShell AD module, to name a few. Be sure to take inventory of all the benefits you can get from making the leap to Windows Server 2008 R2.