In my search for a script to copy the $OEM$ files I also found a script on the Project84 website which makes it possible to have only one partition when deploying a computer in a refresh scenario. A refresh scenario is the scenario in which you reinstall the computer and use USMT to save and restore the userstate. Normaly when this is done it is not possible to format the harddrive since you might remove all the needed files.
This script simply removes all additional partitions on the disk and then resize the System Partition.
For our customer this is used to come to a standard client and remove all legacy states with multiple partitions.. Really great script.