What type of operating system experience do you have? Installing Win2K server is very straightforward and works similarly to installing Win2K Pro or Windows XP.
1. Set up your computer to boot from a CD. 2. Insert the Windows 2000 Server CD and reboot. 3. Setup should allow you to create, delete and format partitions on your drive. 4. Follow the instructions.
Server has some additional licensing options that you must choose, and there are a plethora of different services that you can opt to install or not install. Beyond that you can get a basic server up and running in very little time (make sure you install SP3 afterwards!).
I agree with Rod on this. It is really pretty easy. The install basically goes like a wizard.
It only gets a little more involved as you add the components/features to it (such as making it a DNS server, DHCP server, WINS server, etc.) Also, remember that if you're not going to use it as a web server, you should disable IIS (go to start, settings, control panel, add/remove programs, add/remove windows components. Uncheck the Internet Information Services (IIS) box.) That way, you reduce your vulnerability if you're going to connect the server to the internet.