It's understandable that you are a college student and want to get the best bang for your buck, but you won't be truly happy unless you wait for a slightly better graphics card.
For 40$ more, you could get the 7850 / 7870, which I guarantee, will make you happy.
560 isn't really that good, and the 550 won't be maxing out any of the newer titles without lag issues. Also very power consuming.
-Save up just a little more.