In that board it's going by default 1600mhz.
My suggestion, if i'm not mistaken you're from canada, so i'll just put a link : http://pcpartpicker.com/ca/p/zfBa
It's basically what i recommend overall, except the keyboard,mouse.
It's led backlit the monitor, 120hz, 2ms.
There's also other : http://pcpartpicker.com/ca/part/benq-monitor-xl2420t
I'm not saying the acer monitor is bad, but it's not led backlit.