Just got my recent edition of TechNet Flash, and there was a nice little video in there walking through the installation requirements and step by step for setting up Microsoft Office Sharepoint Server. If you are planning to start evaluating and testing MOSS, I encourage you to take a look at it. You'll find a link to the video about halfway down the page, under the section, "New Videos for IT Pros".

15 Minutes 13 seconds
Join Hilton Giesenow as he covers installation of Microsoft Office SharePoint Server (MOSS) onto a SQL Server environment using Active Directory for authentication. In this first part, we look at installing and configuring the MOSS instance, and in the second part we will look at finishing the installation and configuring the farm.
 
Just thought I'd share..