That PSU is about as average as you can get, not crap, but by no means good.
Much better -
PCPartPicker part list:
https://pcpartpicker.com/list/jyCkqk
Price breakdown by merchant: https://pcpartpicker.com/list/jyCkqk/by_merchant/
CPU: Intel Core i7-6700K 4.0GHz Quad-Core Processor ($328.99 @ SuperBiiz)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.99 @ NCIX US)
Motherboard: MSI Z170A GAMING M3 ATX LGA1151 Motherboard ($159.99)
Memory: Corsair Vengeance LED 16GB (2 x 8GB) DDR4-3200 Memory ($99.99 @ Newegg)
Storage: PNY CS1311 240GB 2.5" Solid State Drive ($64.99 @ Best Buy)
Video Card: EVGA GeForce GTX 1070 8GB SC Gaming ACX 3.0 Video Card ($409.99 @ Best Buy)
Case: Corsair Carbide 400C ATX Mid Tower Case ($97.49 @ Jet)
Power Supply: SeaSonic S12II 620W 80+ Bronze Certified ATX Power Supply ($49.99 @ B&H)
Wireless Network Adapter: TP-Link TL-WDN4800 PCI-Express x1 802.11a/b/g/n Wi-Fi Adapter ($37.88 @ OutletPC)
Keyboard: Corsair STRAFE Wired Gaming Keyboard ($71.99)
Mouse: Corsair Raptor M45 Wired Optical Mouse ($33.99)
Other: mousepad ($14.99)
Total: $1400.27
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-12-31 17:39 EST-0500
Hope you have a large mechanical HDD.
Remember to smash a bottle of champagne over your shiny new PC the very first time you power it up.