My first gaming rig so go easy on me.
I went with the ryzen 5 1600 as a decent bang for my buck processor with some overclocking room. The ROG STRIX B350-F was an awesome mobo with plenty of ports, as well as some great RGB although it is a little dim to me. What more needs to be said about the Trident Z ram it's fast and the RGB is fantastic. The GTX 1060 6GB seemed like a great choice when I bought it prior to the mining blowup last year or so and it really has outperformed all of my expectations I've been able to run the witcher 3 at 1080p on ultra no issues 60fps. When I decided on the Masterbox 5 the reason was airflow and cable management and it has both in spades this thing stays cool with no issues. Seasonic's focus gold 650 may have been overkill but with the mail in rebate it was a great deal so I couldn't pass it up.
I owned the two hard drives before and now used the blue for mass storage and the black for most of my game data. luckily I had a 212 evo so I took the fan from that and put it on the cpu cooler and put the led fan on the front of the masterbox 5 to add a bit more intake air and so the led didn't get in the way of the RGB on the other components.
Please be aware the temps posted are from my 1080p gaming not from benchmark stress tests so take results with a grain of salt.