I'm currently looking to build a gaming computer in the $800 price range. So far, I'm looking at using a Ryzen 5 2600X with the stock cooler (seems like the best choice in the $200 price range, and I don't plan on overclocking, just getting the X version for more performance), and the following case: DEEPCOOL MATREXX 55 ADD-RGB 3F ATX Mid-Tower Case. As for the GPU, I'm looking at either a GTX 1660 (non-Ti) or a RX 580, but I'm also looking in the $200 range for this part as well. Please feel free to suggest which would be better. I want to use at least an 80+ Gold power supply, but I'm not sure what wattage or brand to go with yet (I like EVGA, but SeaSonic also seems really popular right now). Again, feel free to recommend. I'm also not sure which motherboard to use. I want to point out that I have no need for SLI in this build, so I could get away with a single PCI-e slot. I just want to use a quality board. I'll be using 16GB of DDR4 at 2666MHz (probably CORSAIR Vengeance RGB Pro 16GB (2 x 8GB) 288-Pin DDR4 DRAM DDR4 2666 (PC4 21300) Desktop Memory Model CMW16GX4M2A2666C16). Lastly, I'd like to place an emphasis on RGB parts in this build, but I still don't want to go much past $800 total, if at all. Any suggestions or tips? Thank you!