I built a PC.
Pics and info: https://pcpartpicker.com/b/93Z8TW
PCPartPicker was invaluable in my research for parts. /r/buildapc was also useful.
About a month after I put it together, Nvidia announced new video cards. EVGA, the manufacturer of the video card I purchased for my PC, offers a step-up program. Because new cards were released close to my purchase date, I will be able to trade in my old card for a newer, more powerful version at greatly reduced cost. But I am in a queue for that.
I am more or less thrilled with the performance of the new machine.