You can get 750i motherboards cheaper and while you sacrifice 1 PCI-e slot you can save a few bob. Plus, if you try to run SLi with that cheap PSU, it'll just go pop.
http://www.ebuyer.com/product/135159 - this is the minimum PSU I'd go for if you want SLi. This motherboard is also fairly good: http://www.ebuyer.com/product/142585
It's cheaper and unless you want 3 graphics cards in SLi, RAID etc there's no point wasting money on an expensive board like that.