Combatibility Help Please..?

Hey, i've been a long time reader, but this is my first post.

So, I was building one of my friend's computer's and i'm finally done finalizing all the parts , and I just wanted to make sure that these part's would go well with eachother, thanks alot (:

CPU - Intel Core i5 3570K
RAM - G.Skill Ripjaws X F3-12800CL8D-8GBXM (2x4GB) DDR3
MOBO - ASUS P8Z77-M PRO Motherboard
GPU - Sapphire Radeon HD7850 2GB OC V2
PSU - OCZ Fatal1ty Series 750W Modular
HDD - Seagate Barracuda 500GB ST500DM002
CASE - Aerocool Strike-X Advance White

TOTAL - $910 AUS

Thanks alot in advance.

P.S - Reasoning as to why I have chosen a 750W modular power supply , is because he is planning to crossfire his 7850, and I thought, might as well get a decent psu now rather than later.