Did you know you can get Microsoft Hyper-V Server 2008 for free? The main difference between this version and Windows Server 2008 Hyper-V is the licensing. This version requires each guest VM to have it's own license. Also, this one doesn't come with the nice GUI to manage it.

Download Microsoft Hyper-V Server 2008 here: http://www.microsoft.com/hyper-v-server/en/us/default.aspx

Hi , I've read a few things on this site and I really do think that it has helped tremendously.
Some of the new key new features that are available in Microsoft Hyper-V Server 2008 R2 are live migration, cluster shared volume support and expanded processor and memory support for host systems.
Thanks for great sharing useful download link.