A new MAP (Microsoft Assessment and Planning) Toolkit was just announced with a new GUI and some really great features that help you asses your IT environment. The one that I like the most is related to migration of virtual machines in Windows Azure VM environment. Here is a short description:
Windows Azure Virtual Machines Migration Recommendation
MAP 8.0 Beta performs a comprehensive assessment of Windows Server and Linux machines to determine if a migration to Windows Azure Virtual Machines is possible. The toolkit then offers suggested changes to prepare the machines for migration. Key features help you reduce the operating costs of hosting on-premise servers as well as estimating the required size and monthly network and storage usage required to migrate on-premise Windows and Linux servers to Windows Azure Virtual Machines using the data from the environment.
If you want more information, I recommend this blog post.