Very last question about my build

It is great , only thing I think of is changing the 960 into R9 380 4GB It is 270$ but provides 4GB ram instead of 2 .

also note that that motherboard is the lowest end chipest , sure you can cheap out on a motherboard but always check if you cut down a feature that you will use .
 
Looks Great! Except, I think you should go for a mechanical keyboard and gaming mouse, I'm using the corsair M65 RGB and planning to get the K65 RGB keyboard, but you don't have to if you can't/don't want to.
 
Nice system,
If you were to change the GPU get a 970.

As for peripherals use whatever you are comfortable with, I personally like both mechanical and scissor switch keyboards. But I couldn't use any other mouse than my current one, a logitech G502 Proteus core. Just love it.