If you do plan on going to a SLI set up, it would probably be easier to get a motherboard capable of it now rather than later and save the $ and hassle of reinstalling windows. From what I have heard the NVidia Nforce 750i chipset is very good and stable. Link has a list of boards with that chipset. Also considering how new your CPU is, your motherboard might need a BIOS update.
http://www.newegg.com/Product/Produc...Force+750i+SLI
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