Okay, this build has been a long time upgrade to where I am now very happy with it both from a performance perspective and a looks perspective.
CPU - The foundation is a 8700K, delidded and overclocked to 4.9GHz on a adaptive 1.279vcore with occasional blips to 1.308v when stress testing with Prime95, AIDA64 Extreme etc.
Motherboard - The motherboard is the Gigabyte Aorus Z370 Gaming 7 which has done a great job and is happily achieves 5GHz overclocks, though I have not pushed further. The only downside is the BIOS which can be a steep learning exercise to get the best out of it.
RAM To top it of, I have 4 sticks of 8GB DDR4 3000 Corsair Vengeance Pro RGB RAM totalling 32GB and again, totally stable and pushes to 3200MHz with ease.
SSD - I went with a Primary M.2 NVMe SSD in the ADATA SX8200 480GB. This was a great price when purchased and is blisteringly fast and does a fantastic job. I have a couple of other SSD's and a couple of Mechanical drives as well...

Cooling - For cooling I went the Corsair H150i Pro which is the 360mm AIO because it does a great job in cooling and runs very quiet. I added some of the new Fractal Design Prisma ARGB fans and have a push pull setup all running in quiet mode.
Case - The Case is the mighty Cooler Master H500P though I ordered the separate Mesh front and that has made a huge difference. I also changed the 2 x 200mm front fans to the Thermaltake Pure 20 which turned out to be a problem as the fans did not fit properly...Obviously Thermaltake decided to go the non standard route which isn't a good thing but after some fudging I got them installed....I think they look fantastic and I have manged to get the Thermaltake Pure 20 controller to control the Fractal Design Prisma ARGB fans as well....Overall, this is a great case which is easy to build in, has plenty of space and for me looks great but most important, the airflow is tremendous!
PSU - Okay, here is where I went a bit too far with the Thermaltake Toughpower Grand 850w RGB PSU...Did I need it? No but it was on at a good price...say no more on this...
GPU - Here I went with the only choice I could in the RTX 2080 range, the MSI RTX 2080 Gaming X Trio. I have been a long time MSI GPU user, especially the Gaming series and I love the look, performance and cooling. This is such a well made GPU with one hell of a cooling solution that never even gets to 70 Degrees C and this pushes the GPU to the max with an out of the box boost to 1970MHz and even though I have not pushed it yet, 2050Mhz came easy...Oh and be warned, this is a large, heavy GPU which comes with it's own GPU bracket!

As to it's main purpose of providing 4K 60Hz gaming, some light editing and encoding, it is fantastic and handles my games that include Project Cars 2, F1 2018, PUBG etc...with no issues whatsoever. Temps are fantastic with Prime95 small FFT's never getting to 70 degrees C and on just the blend test it s at mid 50's Degrees C. RGB can be a really catching disease and I got bitten....Yes I have added quiet a bit of colour and I have to admit I love it as do my kids....Got to get them involved early...