That looks fine to me for 1080p gaming at high details (that looks like your usage given the parts config).
I'm not a fan of Gigabyte because they lack a Canadian service centre, although the Gigabyte board I own won't die (after months of overclocked F@H with insufficient cooling) so I guess their products are fine if you don't need to send them in

You definitely can't complain at that price though.
Continuing with your Netlink Computer theme for stores, take a look at these PSUs:
Antec High Current Gamer 520W Modular Power Supply at Memory Express Corsair Enthusiast Series TX550M Modular Power Supply at Memory Express Seasonic G Series 550W ATX 80PLUS Gold Modular 120mm Fan Power Supply PSU DC to DC Antec HCG-620M 620W ATX12V Modular SINGLE-RAIL 48A 80PLUS Bronze 135mm Fan Active PFC Power Supply
Each one is actually more than what you need (you can get away with a well-built 450W unit) but it's good to have 2x PCI-E for upgrades and the headroom for less fan noise / PSU temps.