SAMS - Planning Your Move from SharePoint 2003 to 2007: Upgrade or Rebuild?
Updated: April 2, 2009
Applies To: Office SharePoint Server 2007
Read this excerpt from Essential SharePoint 2007: Delivering High-Impact Collaboration by Scott Jamison and Mauro Cardarelli at Safari Books Online.
Whether you are upgrading from SharePoint Portal Server 2001, upgrading from Microsoft Office SharePoint Portal Server 2003, or installing Microsoft Office SharePoint Server 2007 for the first time, you should read this chapter. The authors help you decide how best to move your current SharePoint environments to Windows SharePoint Services 3.0 and/or Office SharePoint Server 2007. Then they explain four options (in-place, side-by-side, a content database move, and a complete rebuild) for upgrading to Office SharePoint Server 2007.
Safari Books Online (http://go.microsoft.com/fwlink/?LinkId=136011)