I've been playing Rage again. I got this last year but for some reason only got to Wellspring and never went back. The opening few hours are a little on the dull side, and the story's a bit crap, but the games really picking up now, and i've got a whole load of fancy toys to play with (the sentry bot is up there with my favourite in game weapons now).
The actual game world itself is amazing, and i'm pretty sure I read somewhere that it's running 60fps on console, which considering how well realised all locations are is astounding. The area's really tell their own story. I've just finished the Dead City section (which reminded me a lot of Ravenholme from HL2), and while there was no actual backstory, you just knew that it was a very bad place to be and some real fucked up stuff has happened there.
I'm really enjoying it, the gunplay is fantastic, it's a really solid FPS at it's core, with great enemy AI that's a challenge even at normal difficulty. If you haven't played it yet - well worth picking up cheap!