As DarkJak said, the Momentus is a better choice than an SSD at the moment. Much bigger size, extremely fast, way cheaper.
Using a Momentus will give you a lot better speed.
As I say often, RAM is very important to increase your speed.
I would suggest a 570 for the graphics card. 2x460s may be troublesome for you, and the performance is not impressive for most tasks, although multiple graphics cards can be way faster for other tasks, though you probably won't be doing such other things.