Get the “Deploying Windows 7 from A to Z” whitepaper to help you understand and develop a Windows 7 testing and deployment plan. It’s a quick read at only 24 pages and gives a good overview of the process. Get if from: http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=dfafb346-97dd-4fca-947e-3d9149834da6