There's a whole host of information out there for people looking to upgrade their AD environments to Windows 2008 from Windows 2003 or even 2000. Rather than do the hard work of pulling this guidance together myself, I'd like to point out the following Technet blog posting as a great place to start....

A lot of people have been asking me for some quick guidance on how to build failover clusters with Windows Server 2008, especially as this is one of the key technologies for enabling high availability for mission-critical services. Both hardware and software considerations are summed up quite nicely...

The Microsoft Assessment and Planning (MAP) toolkit version 3.1 has now been released and can be downloaded from here . This updated version includes reporting on how to consolidate Windows workloads using Hyper-V, our new virtualisation platform. We even offer guidance on how to best place your virtual...

Just a quick note to highlight some of the great work done by the Solution Accelerator team, with the delivery of the Microsoft Assessment and Planning toolkit. This free of charge, downloadable utility provides customers and partners with a quick and easy way to assess their existing IT assets and advises...

Beta Announcement: Infrastructure Planning and Design Guides for Windows Server 2008 Terminal Services and Windows Server 2008 Active Directory Domain Services January 2008 .. Are you evaluating server technologies in your quest toward a dynamic IT infrastructure? Use the Infrastructure...