Firstly, don't type in all caps. It implies you're shouting....
At 1080p, the GTX560Ti should be okay for those games. Note that you might have to turn down some of the settings for The Witcher 2, but for all the other games you've listed, you could easily max them out.
It depends what you mean by "max out". By my definition, that means 60fps on maximum settings, and you won't get that in Crysis 2 or The Witcher 2. You'll get 40, yes, but I'd rather play on lower settings with 60fps. That's not maxing out. You should max Skyrim.
as others said,you can't max out ultra settings with 60 FPS in Crysis 2 or BF3 and witcher 2,forget it.
not trying to be rude but don't expect constant 60 fps.but you can always turn off AA to gain some more frames.
that card can be easily overclocked to 900+ or even 1GHz if you are lucky.don't forget to overclock your cpu too.