Description
One new feature of Windows Server 2008 will be the "Server Core" Installation. In this role only the most important services like Active Directory, DNS and DHCP will be installed on the server without any graphical user interface.The whole administration can be done via console.
This reduces the required resources and provides improved security to your system, as only the needed services are installed.
For a Step by Step guide on how to install Server Core take a look at Technet.
Server Core Installation Step by Step:
http://technet2.microsoft.com/windowsserver2008/en/library/47a23a74-e13c-46de-8d30-ad0afb1eaffc1033.mspx?mfr=true
Download Windows Server 2008 CTP:
http://www.microsoft.com/windowsserver2008/default.mspx