And no, I don't mean WoW or any other online MMORPG drug. I've been out of the PC gaming scene for a heck of a time, with Half Life 2 being the last thing I played. Oh, and Gears of War on a severely underpowered PC. Right now I've got a mid-end system with a quad core and a Radeon HD 5660. So what would be a good action/adventure game to get?