Should I upgrade anything?

I dont live in the states so I dont really know, but I have heard that microcentre are selling i7 4790k for $250, Even thought your i5 is excellent, the i7 would be more future proof, one reason being its hyperthreading technology that more and more applications are taking advantage of.

Also if you arent planning to sli your graphics cards, for your motherboard, I would get the asus z97-k not z97-a