Asrock is a great company (Asus is the only company I'd put in front of them), and that is a solid motherboard. Looks like a really nice build you have there.
What games are you wanting to play, and at what resolution? That graphics card may hold you back a bit on today's more graphically demanding games like BF4 for example. By hold back, I simply mean you wouldn't be playing BF4 at ultra settings.