If you like Uncharted 1, get Uncharted 3, and probably Uncharted 4 when it comes out. There's also now apparently a God of War collection that has the 2 PS2 games, 2 PSP games, and the PS3 God of War 3. Those are some good games for when you just want some unapologetic violent game. Tales of Graces f was pretty good. I need to get around to finishing it, but Valkyrie Chronicles was an interesting game from what I played of it. Both Batman Arkham Asylum and City were pretty good. I have high hopes for the next Tales and Persona installments as well. You can get Mass Effect 2 and 3 for the PS3, maybe at some point they'll release 1, who knows.
You can actually buy FF 7-9 on PSN if you want to do a little retro gaming. That should give you enough to get started and keep you busy until late spring, maybe into summer.
And finally, I'm with SandEagle. FF13 was not that bad of a game. The whole story was centered on the idea that the characters have to keep on the move to avoid capture. So to paraphrase a bit from the great late George Carlin talking about people who break out of prisons: What do you think they're going to do? Stick around? Check real estate trends? ... That's the whole point of breaking out of prison, to get as far away as possible!
The story was maybe a little light on the main plot thrust, but then they were always intending FF13 to be like a 7 year franchise with the main canon and then some spinoff games (though it's looking like Verses may not ever see the light of day). So FF13 was just the opening chapter, then you've got XIII-2, and there's going to be a XIII-3. In XIII a lot of the story centered around the development of the characters. Having to come to grips with the new reality of their situation and then learning to trust one another and work together. So for people who are looking for a story to be mapped out for them and delivered on a silver platter, XIII will probably disappoint. But for people who like the more subtle literary delivery devices, XIII does not disappoint. Unlike XIII-2.... About the only good thing I can really say about XIII-2 is it wasn't as bad a sequel as X-2 was. By the time I got close to the end of XIII-2, it was feeling more like work than a game.