My dream gaming build for an adult nerd that loves to game.
Modest overclock to the CPU pushing 5Ghz @ 1.35v
Everything about the build was fairly smooth with the biggest complaint being that the fairly expensive case doesn't come with a riser cable to install the GPU with the included vertical mounting bracket. This is an extra $40 to get one that will properly mount onto the hardware.
I've been playing around with computers since 1993 and my experience is generally just upgrading ram or video cards, but it's my first time building from scratch so I figure I'd share what I learned/my opinion
Planning is important. I was originally planning on building a comp for fun and not get anything too crazy, but as I was researching parts I got into a habit of saying "but if I spend only a little more I can get this instead" and as a result I ended up having to buy a new case since the CoolerMaster Masterbox Lite 5 RGB wasn't suited to hold my cooling system the way I wanted to run it (cold air intake front/bottom, exhaust top/rear) but that said I did put another system in that case think it's a phenomenal case in terms of bang for your buck.
RGB is awesome. It's fairly cheap, super easy to install and program, and can add some fun to your case. If you don't like the lights, turning them off doesn't make your system look bad either.
If you can afford to avoid it, HDD's seem like a waste. One of the first pieces I bought for this was the HDD, but I feel like I'd have been better served investing that money into a larger SSD, they keep dropping in price and HDD's feel obsolete now.
The size of your case is more important than I assumed it would be. Obviously you want a case that has enough space to fit your system in without it being too cramped or effecting your thermals, but having a case that's too large for the cooling system doesn't help either. I had to play around with my set up in order to ensure I have positive pressure in the case as well as figure out a way to use up from of the front of the case without having an empty space large enough to fit a small child.
AIO cooling on your GPU is fun because it lets the manufacturer put interesting RGB lighting on the GPU, but unless you're mounting it vertically, the RGB faces straight down and is utterly pointless.