Here are some basic setups to help you get started. For boards, there are attached half inch-square grid and hex "grid" images. There is also a starting template for game rules - clone it, take a first cut at the rules, and start playing!

Also available here is a template for cards, which should line up with the pre-perforated business card stock available at office supply stores. To make this print properly (From GIMP 2.6.6) I needed to specify a resolution of 75 pixels/in, and "Ignore Page Margins".

Other sources of starting data:

• Wikimedia Commons has a collection of blank world maps which are available in the public domain (check the license on each one, as there is a little variation).