A little different with the Ryzen 3600 and the B450 Tomahawk (you will need a BIOS update) but a great CPU!!! RX 590 which is there or there abouts to the 1660. Changed to smaller SSD + HD combination.
PCPartPicker Part List:
https://pcpartpicker.com/list/JWdqsk
CPU: AMD Ryzen 5 3600 3.6 GHz 6-Core Processor ($194.79 @ OutletPC)
Motherboard: MSI B450 TOMAHAWK ATX AM4 Motherboard ($114.85 @ OutletPC)
Memory: Corsair Vengeance LPX 16 GB (2 x 8 GB) DDR4-3200 Memory ($74.99 @ Amazon)
Storage: Kingston A400 240 GB M.2-2280 Solid State Drive ($31.99 @ Amazon)
Storage: Hitachi Ultrastar 1 TB 3.5" 7200RPM Internal Hard Drive ($29.99 @ Amazon)
Video Card: Gigabyte Radeon RX 590 8 GB GAMING 8G Video Card ($199.99 @ Amazon)
Case: Phanteks P300 ATX Mid Tower Case ($59.99 @ Amazon)
Power Supply: SeaSonic FOCUS Plus Gold 550 W 80+ Gold Certified Fully Modular ATX Power Supply ($89.99 @ Amazon)
Total: $796.58
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-10-01 06:10 EDT-0400
If you could go $12 more over the $800 mark, then a bigger M.2 SSD and the 1660:
PCPartPicker Part List:
https://pcpartpicker.com/list/MPDwPn
CPU: AMD Ryzen 5 3600 3.6 GHz 6-Core Processor ($194.79 @ OutletPC)
Motherboard: MSI B450 TOMAHAWK ATX AM4 Motherboard ($114.85 @ OutletPC)
Memory: Corsair Vengeance LPX 16 GB (2 x 8 GB) DDR4-3200 Memory ($74.99 @ Amazon)
Storage: ADATA XPG SX6000 Pro 512 GB M.2-2280 NVME Solid State Drive ($59.99 @ Amazon)
Storage: Hitachi Ultrastar 1 TB 3.5" 7200RPM Internal Hard Drive ($29.99 @ Amazon)
Video Card: Zotac GeForce GTX 1660 6 GB GAMING Video Card ($219.99 @ Amazon)
Case: Phanteks P300 ATX Mid Tower Case ($59.99 @ Amazon)
Power Supply: EVGA BQ 600 W 80+ Bronze Certified Semi-modular ATX Power Supply ($56.88 @ OutletPC)
Total: $811.47
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-10-01 06:16 EDT-0400