Previously we upgraded our Windows 2003 domain to Windows 2008 and now we add a Windows 2008 core server. Windows 2008 server core is basically a stripped down version of Windows Server 2008, no GUI, no tools, not even solitaire! Core servers can host a number of key services, e.g. DNS, Active Directory or DHCP and when adding these roles only the required files and services are added. Minimal footprint, minimal attack surface, and minimal patching. This 2008 product is looking good!