It's always good to have a Windows PC for work that can't be done on ChromeOS. I have a chromebox that I use regularly for browsing, but I fire up my PC for all other stuff.
Anyway, as for your build, everything looks fine but I'd add an ssd for OS boot. Something cheap such as 120gb would be sufficient, and nowadays you can find those cheap. You can also ditch the bluray drive unless you'll really need it. Lastly, consider that you may be fine with 8GB ram instead of 16GB.
e=mc^2

Gaming on: PS4 Pro, Switch, SNES Mini, Wii U, PC (i5-7400, GTX 1060)







