Looking for a free Active Directory simulation tool

I am a member of a support group which manages one Organizational Unit in our Active Directory domain. I want to propose a reorganization of our OU to our group at our Friday meeting. I want to be able to show a simulation of how the reorganization will look and I want us to be able to change this at the meeting if others in the group want to see it organized in a different way. I found a utility called Virtual AD at http://www.pukka.com/products/default.aspx?productid=VirtAD but there is only a 30 day trial and after that it is very expensive. I would like to be able to work on this for more than 30 days. One idea I had is that if there were a utility that could export all the items (users, computers, Security Groups etc.) into a file structure where each item was a file (say a text file with nothing in it which had the same name as the AD item) then we could just use Windows Explorer to reorganize it. Does anyone know of a free utility that can perform either of these scenarios?