You pasted the same link as the MoBo instead of the graphics card you're wanting to get. I'm going to go ahead and guess its a recent video card (At least 1.7" in width) and say no it will not fit three. I can't determine just how far apart those PCI slots are but just looking at it they look about an inch apart. Also that is not a good MoBo to have three graphics card on. If all three slots are populated, only one will be x16, one will be x8, and the last one will be x4. A graphics card in a x4 slot is not a happy card.
okay in the end i have chosen to pick this motherboard as it http://www.msy.com.au/product.jsp?productId=8247
has x8 and x8 PCIE slots and it has way more features than u get in the price range, the features this mobo has can be seen in a much more expensive mobo. the only question is, is ASROCK a good brand ?
also is there much of a difference between a amd quad core 640 3.0 ghz and a intel i5 2500k ? i see benchmarks and theres a huge performance but is that only because they have like a gtx 580 ? would i still see a differnce if i had a ati 6850 ?