I made a few revisions to the build you listed:
PCPartPicker part list /
Price breakdown by merchant
CPU: Intel Core i5-6500 3.2GHz Quad-Core Processor ($194.99 @ SuperBiiz)
Motherboard: Gigabyte GA-B150M-D3H Micro ATX LGA1151 Motherboard ($57.98 @ Newegg)
Memory: Team Elite Plus 8GB (2 x 4GB) DDR4-2400 Memory ($29.98 @ Newegg)
Storage: Kingston HyperX Fury 120GB 2.5" Solid State Drive ($39.99 @ Amazon)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($47.49 @ OutletPC)
Case: Thermaltake Versa H22 ATX Mid Tower Case ($34.98 @ Directron)
Power Supply: SeaSonic S12II 520W 80+ Bronze Certified ATX Power Supply ($54.99 @ SuperBiiz)
Other: GTX 1070 ($379.99)
Total: $840.39
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-06-05 01:29 EDT-0400
For starters, if you're new to PC building, I would recommend sticking to a locked CPU, like the i5 6500. You'll have near identical performance, and will still run the GTX 1070 absolutely fine. Because i went with the 6500, I picked out the Gigabyte B150 motherboard. It has an m.2 slot for future storage, a plethora of USB 3.0 ports, and is a great board overall. Picked out some 8GB sticks of Ram, because anything above that is overkill for gaming. I chose this Kingston SSD which, while not the fastest, will definitely make running the PC and loading games much faster. I went with a 1TB hard drive, because you never truly know how much you're going to store, and better to have more space than less space. I changed the case to this Thermaltake model which I like. I chose this 520W model from SeaSonic. It is rated as Tier 2 by the PSU tier list, and will run all of your hardware with no issues. It is by far, higher quality than the PSU that comes with your case. I hope this works for you, best of luck!
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