Any good games where you build a crew and go adventuring?

Final Fantasy VII
Fallout 3 if you befriend that giant mofo ...into doing your dirty work for you.

i can't believe nobody mentioned pokemon :D

Final fantasy - All of them

Guild Wars!

Rise of the Argonauts. But it's dreadfully linear. It does have a nice role-playing component to it. You make offerings to different gods to get different special abilities: Hermes for swordsmanship, Apollo for blocking with your shield, Ares for smashing heads with a mace and Athena for medium range combat using a spear. That's pretty interesting, but the crew itself, while made of famous mythical figures, such as Hercules or Ariadne, are bland, uninteresting and boring, especially compared to a game like Mass Effect, for instance. Oh yeah, it also has a dialogue system similar to Mass Effect, but in here you have 4 possibilities, as opposed to the two(Paragon and Renegade) from ME. You gain favor from the four gods based on your type of responses: witty and while for Hermes, inquisitive for Athena, blunt, rude and barbaric for Ares or charming and polite for Apollo.