dSHIFT Migrator for SharePoint® is a tool that facilitates contents and permissions migration from your existing SharePoint environment to the newer ones. Built on Microsoft SharePoint APIs, this essential migration tool is capable of successfully migrating contents from WSS 3.0 and MOSS 2007 to MOSS 2007 and to SharePoint 2010 with 0% content loss.
http://www.dshift.com/solutions/sharepoint-migrator-standard/
