Is there some reason your not going with 1600 ram?
this is a good build and this is the right part ?
CPU: i7 3770
Case: cooler master elite 430
Motherboard: AS Rock Z77 Extreme4
Memory: G.SKILL DDR3 16GB (2x8GB) PC10666/1333 RipjawsX F3-10666CL9D16GB XL
Power Supply: OCZ ZT Series 650W 80+ Bronze Modular
Hard Drive: Western digita 1tb black caviar
I will be using the built in graphic
Mouse and key broad