Virtual Server 2005 R2

Ok, i want to start, maybe , trying to implement moss 2007.
First i need a development machine. So I install virtual server 2005 r2 as my research machine.

The interesting feature in virtual server is we can add virtual hard disk (.vhd) that called “Differencing disks”.
We can make a child disk that differ from the parent disk.
The purpose is that we make a hierarchy of our disk, for similar function in other virtual machines.
The parent will be installed similar software/applications that will be consumed for another machine.
And the child will be installed specific applications that we will use for our research.

For more information about vhd types in virtual server 2005 r2, you can visit this link.
http://anildesai.net/Main/Technical/Virtualization/VirtualizationArticles/ManagingUnderstandingVHDOptions/tabid/79/Default.aspx