This looks like it would be quite useful in doing quick maps. I'm wondering, as a GIMP user (and a complete newbie to cartography) if anyone else who uses the GIMP has done something similar to this or has adapted this tutorial for us in the GIMP? If so that would be quite the useful tool. I've attempted to apply your technique to a map I'm currently working on for my online game, but there seems to be more fine-grained brush control available in PS than in the GIMP (at least as far as I can tell) with things like jitter, directional stroke and spacing/such...either that or I'm missing something. Any help with this would be much appreciated, and thank you for taking the time to put up this tutorial.

Tal