The 660 Ti is crippled on high resolutions thanks its low bus rate. Get the 7950 instead - same price as the 660 Ti, but has a close performance to the 670 and it has a higher VRAM and bus rate. It's at the same price point as well.
You have the option to OC with that combo of CPU and motherboard; with that comes a CPU cooler installation. Installing that would be a pain with the tall heatspraders the Ripjaws X come with. Consider low profile ones such as the G.Skill Ares/Sniper.
I don't believe Apevia has the best reputation for PSUs. Get the XFX 550w, you shouldn't cheap out on this particular component since a bad unit can cause your components to fry if it fails.