dSHIFT Migrator for SharePoint®is capable of migrating large amount of data while maintaining the document versioning. You can confidently migrate your valuable data from WSS 3.0 and MOSS 2007 to MOSS 2007 and to SharePoint 2010.You can even let the tool migrate contents directly from source to destination unattended. SharePoint Migrator simplifies your migration process while avoiding associated migration risks. Another interesting feature of the tool is that you can even carry out migrations remotely.
Please use the following link to get more details about this product and download an evaluation.
http://www.dshift.com/solutions/sharepoint-migrator-standard/
