Newegg.com has the ABS Rogue SE Ryzen 5 3600 / 512GB SSD / GTX 1660 Gaming Desktop for $749.99 with free shipping.

• AMD Ryzen 5 3600 3.60GHz 6-Core, 8GB DDR4, 512GB SSD
  6GB NVIDIA GeForce GTX 1660, Gamdias VELA M1 tower, 500W PSU, Gigabit Ethernet, HDMI 2.0b, 3 x DP 1.4, Win 10 Home x64