My setting is the solar system, with heavy development out to Jupiter and lighter development out to Saturn, Uranus and Neptune. Most of the action takes place between Earth and Mars, with the asteriod belt (Ceres) between Mars and Jupitor being the location of the "frontier".
Maps are easy to come by, the space is MASSIVE and i have never had the need of a gazillion aliens. I would like to run a game were the cats from Privateers are ram jet invading Kazinti from a dying world (they got in the way of the pupeteers...). First I need a group though.