Planning on building a pc

[ijed]

I'm planning on building a gaming pc and I wanted some opinions on how well it would run most games. My build would consist of a i5 3570k, asus maximus V Gene, 8 gb ddr3 1866, and a Nvidia GTX 670. I'm hoping to be able to overclock the processor to 4.5 ghz. I'd like to be able to play Skyward Sword and Luigi's Mansion full speed at 1080p. Would this be a good enough system? I've read from some people that you need the best i7 processor around but I'm hoping an overclocked i5 would be good enough. Thanks for your help.