Summary Edit: This took awhile longer than I thought it would take to build this PC. I first bought the Inte i7 5930K 6-core from a friend that sold it to me for $150 less than original price during the summer of 2015. My original plan was to build the 5930K with GTX 980, but later found out that 980ti was released. Spent a little more for the Hydro GFX for the built in liquid cooling (other option was the Waterforce). The color choice came into play after I figured out I wanted the 980 ti. I didn't want anything too flashy. I think the subtle yellow fits perfectly for me (except that the case has some blue linings).
CPU: For the price i paid for, I couldn't go wrong with it. I do music recording and video editing as a hobby (gaming too). I think it'll serve its purpose for me well.
GPU: A bit overkill on my part I think. For an extra $150 and already forking out that much money, why not? 4k gaming is a real fun experience.
MOBO: I had no choice preferences on a particular mobo. I figured I'd just stick with the same brand, and same color wise. MSI has been good to me so far.
PSU: the PSU is a be quiet! 1000w platinum, not 1100w. I bought this at a good deal on black black friday. Looks and feels real nice. You could literally replace the sand bags you throw in the back of your car every winter with this.
CPU fan: Kraken x61 or the H100i GTX. Both with mixed reviews, but Kraken sounded so much cooler. It was a pain in the butt to set it up. My case literally had no headroom for a radiator and 2 normal 140mm fans. I replaced both fans with slimmer ones and BAM! No drilling was needed at all! It's very quiet.
RAMs: Just needed rams...but more rams. 3200MHz wasn't my particular choice, it was just the cheapest at the moment I bought it.
Monitor: I do some FPS myself, mainly CS:GO. Tested Asus and Acer both out at a local store. The IPS panel caught my attention a little more. 144hz is smooth...smooth like butter.
Mouse: I grew up playing with a microsoft mouse for maybe atleast a decade or even longer. It had the same design and feel. Took some time to get used to it, but it works well with me.