Well it depends on what your building it for...
if you want to game on it, the i7 is useless however if you want to edit and render then i7 is a plus.
if you want to game on it, you don't need the 16gb memory.
Your missing the power supply and case.
I would go with the i5 3570k and the Gigabyte z77 Motherboard.
Whats your budget as of now? i can throw you a build together!
2K and under!