Free Gartner reports on Vista and MDOP
The reports will be here until 12th March 2009
Quantifying the Value of Microsoft's Desktop Optimization Pack
https://mediaproducts.gartner.com/reprints/microsoft/vol4/article6/article6.html
How to Quantify the Value of Software Assurance for Windows Client
https://mediaproducts.gartner.com/reprints/microsoft/vol4/article5/article5.html
Understand the Risks of Skipping Windows Vista
https://mediaproducts.gartner.com/reprints/microsoft/vol4/article4/article4.html