This useful free sysinternals tool allows you to take a snapshost of a live running server and convert it to a VHD file which you can then use with Microsoft Hyper-V. This should be very useful in making test setups etc.
http://4sysops.com/archives/free-disk2vhd-a-simple-p2v-tool-that-creates-vhds-for-hyper-v-and-virtual-pc/
Dave