That GTX 560 ti is definitly not worth the $200 price. Get a radeon hd 7850 2 gb or radeon hd 7870(Gtx 580 equivalent) instead. Both thrashes 560 ti in every game. But, hd 7850 is cheaper than 560 ti and hd 7870 is about the same price.
Hi that build you got there is good. But you can get much better for the same money and with more reliable components. Also seeing as you are on a budget, i'd say you drop SSD. You can always add that later when you save some money, but for now you are better of spending that money to improve your build.
So here goes: it's even lower price than your build and with greater performance