The 275, is a great card and neither of the options you have suggested would be a "real" upgrade. The 470 is almost identical in performance and the 560 is barely better. I would wait till the price drops on the 580 as it will be the next card you will want. I personally have a similar setup.
Phenom x4 965BE
GTX275 OC 896Mb
8 GB DDR3 OC @ 1928Mhz
850 Watt PSU
5.1 Surround Speakers
G510 Keyboard
Razer Death Adder Mouse
37'' LCD
I am waiting till next February to upgrade my GFX card to a 580 and hoping that the price drops by then.
Phenom x4 965BE
GTX275 OC 896Mb
8 GB DDR3 OC @ 1928Mhz
850 Watt PSU
5.1 Surround Speakers
G510 Keyboard
Razer Death Adder Mouse
37'' LCD
I am waiting till next February to upgrade my GFX card to a 580 and hoping that the price drops by then.









), then if you have the need to upgrade, the 560 Ti would be your best choice for $250.









