Don't get that ASRock Extreme3 motherboard, I would get something a little nicer that can handle higher power loads rather than a motherboard with 5-phase power.
I have the 3820 and the 2133 G.Skill memory and I can vouch that both are awesome and won't disappoint. As for the motherboard. I personally have the P9X79 Deluxe which has all the bells and whistles of the ASUS X79 lineup for non-ROG boards, but a lot of people seem to be pretty happy with the Pro. If you're going to be building SB-E, REALLY don't recommend skimping on the motherboard, it's not a good plan. Either way I'm recommending what I have because it runs awesome.
ASUS P9X79 Deluxe