I'm going to guess you're a programmer, and so I'm going to say that this question is the sysadmin equivalent to "I want to learn a new language, where do I start?" So, I offer the same advice - pick a project and implement it. It sounds like you already have (that is, you have a goal for the purpose of the server). So, instead of asking a broad question, break it into steps, try to accomplish, and ask questions on that specific implementation problem.
So, instead of this broad question, why not ask one that's just "I have an IBM eServer with hardware RAID (2 18Gb and 4 72Gb 10,000RPM SCSI drives) and 2.5 Gb of RAM. I intend to put Win 2k3 on it. The drives are blank and the RAID is not configured. Does raid initialization happen during OS install, or do I have to prepare the RAID first? What tools do I need to prepare the RAID if Windows doesn't handle it for me?"