I've been playing a lot of privateer lately and I'm debating about trying a space roleplaying game with my friends. I'm looking for something fairy light and happy. You know there's space pirates, space stations, etc, but there's no giant evil alien empire trying to kill you.

I'm debating about using star wars, but I hate the way someone always wants to play a sith or something, I'm looking for something more "White and Grey" where I can give them a ship, a basic plot and have them fly around fighting people and shipping cargo (although knowing my players having the ability to play pirates and crime lord would probably help).

Basically I'm looking for a space roleplaying game that isn't Warhammer 40k.