Memory for an Asus Rampage II Gene Shootout!

Ok guys, here we go. I need some suggestions on memory for my new i7 build. I'm going to be running an Asus Rampage II Gene motherboard with 6gb of memory. I want good quality, fast ass memory with overclocking potential from a reputable company. I also don't want it to cost an arm and a leg though.

Companies I'm leaning towards:
Corsair(a little on the arm and a leg side)
G.skill
Kingston

Companies I'm not so sure about:
Patriot
Mushkin
OCZ

What do you guys think? Personal preferences? What goes best with Asus boards? Customer service?

Thanks for your help guys!