If you are planning to install Windows 2008 Server, while looking for new installation or for dual boot or upgrade with this article your installation can be easy as it covers all the three scenarios.
Before we jump straight away to the installation part, let's understand the hardware that meets our required for installation.
Minimum:
The above holds the minimum requirements, but I will recommend keeping the maximum hardware as per your needs, for e.g. memory-4 GB, harddrive-40 GB where 2008 is installed and processor 3.2 GHz.
Also I assume that you will have proper raid levels as per hardware purchased, have this configured in case of any disaster, data is not lost.
Let's begin the installation
I will just post the guidelines based on what the role of you server might be.