If your real interest is just fluff, then I would highly recommend taking a look at Jovian Chronicles from Dream Pod 9. The Spacers Handbook and almost any of the other books do an incredible job of portraying life in a hard sci-fi version of the Solar System. The art is pretty anime but the game is most definitely not. It also has the most understandable explanations of many space/stellar concepts that I've come across.
Spacers Handbook is excellent for fluff on microgravity/colony cylinder living. Dealing with small personal space onboard ships etc.