Before you buy any of these, make sure they fit in your case and on your MB. They're huge.
how will i make sure that they fit in my mobo and casing? I will be getting the asus rampage formula or extreme mobo and the casing will most probably be the nzxt tempest. What do you think? Will it fit well?? Will it have enough space?
I suspect the Core Contact (i.e. Tuniq v2) will have the same issue, but I don't really know for sure.
Anyway, Rampage Formula + Xigmatek + Tempest should work. I found users with Rampage Formula+Xigmatek HDT-S1283 among the Rampage reviews, and then users with the Xigmatek HDT-S1283 among the reviews of the Tempest.