Prior to joining Microsoft I was a happy customer of the Intranet Roadmap that is available from Step Two Designs Home Page. I wanted to make sure that I took a brief moment to give it a Link with a Clink as a Good Clink.
Check them out as part of planning your intranet. This is a great addition to the information and resources available on the SharePoint Server TechCenter on TechNet.
While you are at it, go on over to the SharePoint Capacity Model that you can download as an extension to the System Center Capacity Planner 2007 (http://www.microsoft.com/systemcenter/sccp/default.mspx) for FREE!!