Which one to get?

Get something like this

PCPartPicker part list / Price breakdown by merchant

Type Item Price
CPU Intel Core i7-6700K 4.0GHz Quad-Core Processor $328.89 @ OutletPC
CPU Cooler Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler $29.99 @ Newegg
Motherboard Gigabyte GA-H170M-D3H Micro ATX LGA1151 Motherboard $87.88 @ OutletPC
Memory Crucial Ballistix Sport LT 16GB (2 x 8GB) DDR4-2400 Memory $69.99 @ Newegg
Storage Samsung 250GB 2.5" Solid State Drive $72.89 @ OutletPC
Storage Hitachi Deskstar 1TB 3.5" 7200RPM Internal Hard Drive $37.00 @ Amazon
Video Card MSI GeForce GTX 1080 8GB Video Card $599.99 @ Amazon
Case NZXT Source 210 (White) ATX Mid Tower Case $34.99 @ Directron
Power Supply EVGA 500W 80+ Bronze Certified ATX Power Supply $42.49 @ SuperBiiz
Prices include shipping, taxes, rebates, and discounts
Total $1304.11
Generated by PCPartPicker 2016-11-11 18:56 EST-0500

Then go over to Microsoft swap on reddit and get 15 buck version of windows 10, 8, or 7.

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