ShareGate Migration Tools
Excellent tool. Very easy to use and does exactly what it says it will do. Mainly needed a tool that I can move groups of documents and folders from SharePoint 2003 to SharePoint 2007 and then to SharePoint 2010 and retains all user information. This tool has become invaluable to me as a SharePoint admin.
Does exactly what it says it will do (retain info and versions
Has an interactive mode or auto mode
Help is excellent