If you've ever wanted to copy an Apple Remote Desktop setup from one machine to another, you need to move a number of files. Open Terminal, and run the following commands -- modify the username and machinename settings as necessary for your environment. Note that the lines that start with ### are explanatory; don't type those...
Note that this should preserve passwords as well. This Apple article was used to come up with this solution.Mac OS X Hints
http://hints.macworld.com/article.php?story=20080403105655929