Ortelius seems perfect. I'll experiment with it and see if it is what I wanted.
I think that seeing as it costs $100, I'm not going to buy the full version. Annoying though they are, a watermark is no big problem.
So, what shall we do first, mechanics of the environment, fluff and history, or geography?EDIT: Actually, I would definitely prefer to do the geography first, because it is hard to work out the history and culture of countries that don't exist yet.
I would like to do the last two first, but if anyone thinks that is a bad order to do it in just say.