I guarentee that someone is gonna come out and tell you that Intel sucks, and that you should go AMD. I really have no preference, so I wont tell you to scrap Intel
I would go with
this mobo, instead
It's half the price, and one really doesnt need SLi, especially when it means spending 2x on a mobo

Not to mention, if you go SLi, you'll have to get more than a 450W PSU
Also, do you have a vid card picked out at all?