Or if you are only gaming and want cheaper components:
PCPartPicker part list:
https://pcpartpicker.com/list/JLYxFt
Price breakdown by merchant: https://pcpartpicker.com/list/JLYxFt/by_merchant/
CPU: Intel - Core i5-8400 2.8GHz 6-Core Processor ($179.00 @ Amazon)
Motherboard: MSI - Z370-A PRO ATX LGA1151 Motherboard ($115.99 @ Newegg Marketplace)
Memory: Team - Vulcan 16GB (2 x 8GB) DDR4-3000 Memory ($164.99 @ Newegg)
Storage: SanDisk - SSD PLUS 240GB 2.5" Solid State Drive ($69.99 @ Amazon)
Storage: Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($46.49 @ OutletPC)
Case: NZXT - S340 (Black) ATX Mid Tower Case ($54.99 @ Newegg)
Power Supply: Corsair - RMx 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($74.98 @ Newegg)
Operating System: Microsoft - Windows 10 Home OEM 64-bit ($89.89 @ OutletPC)
Total: $796.32
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-02-17 01:51 EST-0500
Saves quite a bit of money, PSU is pretty good, SSD and HDD included in the price and not to mention OS as well. 8400 is literally the way for gaming right now.
Do you need monitors and peripherals?