Have you played the Mass Effect series? A little more action oriented, but you can develop a character to suit your play style, if you don't like to run and gun.

Only part 2 is available on the PS3 (with part 3 coming). You can pick up the first one for the PC cheap now, though.
Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs