Why do you need RAM of 2000mhz or more? Having high frequency ram doesn't have much uses, although it greatly benefits AMD's APU's but you stated you have intel so...
Also, higher frequency ram has higher latencies.
Just buy 1600mhz or 1866mhz ram and then spent the save money on a cpu cooler (or a better gpu or w/e) so you can overclock your cpu more and get overall better performance. Profit.
Great. What would be some 1866Mhz at 16gb i could use? Also i have a corsair h80. Can i oc with that?