These CPU's can be power hogs, so make sure that what ever motherboard you get has an 8-pin plug for the CPU (usually located towards the top left of the mobo). Make sure that the motherboards lists the CPU and the RAM that you want to use in their "supported" listing before you purchase to save you a few headaches. GPU and HDD sound fine, but make sure that you purchase a good power supply (PSU) to power all of this and not a el cheapo one. Remember, all of your components are fed via the power supply, if you want them to perform and to last you need to feed them reliable, clean power.
I would recommend Corsair, Antec, Silverstone in the 500-600W range.
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