Is .NET the right bet?
PC World | at | by Mike
It may look like Windows 2000 Server with a mere user interface lift, but .NET Server 2003 is much more than that. Microsoft has made dramatic changes to many parts of the OS. And the code has either undergone functional changes or been completely rewritten to work out bugs and improve stability and speed.
.NET Server 2003 Standard Edition will replace Windows 2000 Server as the entry-level server platform for most midsize organizations (and will be the upgrade path from it as well). The new platform will fall between .NET Server 2003 Enterprise Edition and Microsoft Small Business Server 2000, which will be replaced with a new version sometime in 2003.