Overclocking on my first gaming computer build...

The ram is a no go you want to buy ram in sets dual channel since your mobo supports it and you overclock your cpu through bios and GPU with MSI Afterburner Here are a couple other overclocking guides. One uses EVGA Precision, but it is exactly the same on Afterburner. In a way, you're lucky the GTX 660 Ti and other Kepler cards will overclock themselves and set their own voltage, so you can't really hurt them with a bad overclock. http://www.overclock.net/t/1198504/complete-overclocking-guide-sandy-bridge-ivy-bridge-asrock-edition
http://www.overclock.net/t/1247413/ivy-bridge-overclocking-guide-with-ln2-guide-at-the-end
http://www.hardocp.com/article/2012/04/04/nvidia_kepler_geforce_gtx_680_overclocking_review/
http://www.guru3d.com/article/palit-geforce-gtx-660-ti-jetstream-review/26