Hello I was thinking about a game I liked today and decided I wanted to make a map (yeah I know...).
So I click Gimp Cartography and It leads me here so I look up some general tuts and decided I'd introduce my self.
My names Jesse, but whenever I find a forum I like that doesn't have the name taken I go by Shinkirou.
Plenty of great tutorials for GIMP here to get you going.
Like the posted above, there are lots of great tutorials here. Good luck and can't wait to see your WIPs! Welcome!