Keir, I use mostly Gandalf's little helpful hints and files he has at his site:

http://www.techno-mage.com/~dominion/

Try looking through and pulling anything with mapediting to see what things are and of course, just asking Gandalf when you run into a problem.

Other than that I can't give you much advise. I believe Gandalf and maybe Pocus would have more insight.