Also i just saw the rampage extreme oh my god. what do you think. Should i get it. You see my birthday is coming up and my wife is getting some gifts. So i have to choose the right board i need. I wont bother no one after that. This is my post on this thread. Rampage go for it or go for the Evga. Are you a fan of EVGA grooveriding
Lots of people use Asus and love them. I prefer Gigabyte, if I were to go another way it would probably be an evga board.
There is not a huge difference between the different high end board makers amongst the different price points. If you are going tri-sli (I assume sli) I would go for the classified you linked, at that price it is a great deal and an ideal board for what you want to do.
SLI, particularly tri, needs a lot of cpu horsepower to perform optimally. So you're going to want to overclock your i7 to at least 3.6 or so, I would recommend 4ghz. That classified board is known as a great overclocker and it should be simple and straight forward doing the overclock on that board.
But if your preference is the Asus, that board will fulfill your needs as well. I don't know pricing in the states for that board, but up here it's $450 vs that classified at $300, the two boards are pretty even, so you'd save $150 with the classified.