First off with some specs and info. I have my i7-4790k overclocked to 4.7Ghz 24/7, although I could push it higher if I wanted to. I have gotten it all the way up to 4.9Ghz with about 1.4 volts, but I only need 1.3volts to get it stable at 4.7Ghz, so that's where I keep it. My 980Ti's aren't overclocked quite as much, simply because they get so hot. In single GPU systems, it's pretty easy to push cards all the way to their max overclocks on air, but with more than one GPU, they just get way too hot. Because of this, both the cards are just +100mhz on the cores and +275mhz on the RAM. They boost to somewhere around 1450mhz on the core, but will come down if they run at max load for a while, as they do tend to get hot. Other than that, I have all my 4 SSDs in RAID 0 that get around 1.6GB/s reads and 1.2GB/s writes, and I have the entire RAID backed up nightly to ensure data integrity.
Under optimal conditions with basically the max overclocks I could push, I got this computer to score 24k in Fire Strike (technically 23949, but it's so close I just pretend it's 24k lol) However, under my normal 24/7 overclocks under my typical use case with all my normal programs and whatnot running in the background, this computer scores around 22000 on Fire Strike, definitely not bad. Here's a link to my best Fire Strike run for anyone interested: http://www.3dmark.com/fs/7260231
So I built this computer a bit over a year ago, but I've changed well over half of the components, and I recently made what I think will be the last upgrade for a while.
I still plan to get rid of my side 144hz monitor and replace it with a 1440p (probably 27inch IPS) monitor at some point, but other than that I'm pretty happy with the setup and I don't want to change much else. Every time I add or change something, the cable management is a HUGE pain, whether it be plugging into the back of my computer or changing something in the computer itself. I counted, and there are OVER 35 cables behind the motherboard in my computer and it literally takes me hours to re cable manage every time. Even just under my desk, I have to make sure everything is nice and managed or it would look like a literal rats nest.
As for the panels, I must say that 1440p 144hz IPS is amazing. I love my XB270HU and I could never step down to something else for a main monitor again. I used a 1080p 144hz TN panel as my main panel for a while, but then I upgraded and the combination of the extra real estate with 1440p as well as the significantly better colors with the IPS and I fell in love. And for gaming, 144hz is a necessity to me at this point, although entirely unnecessary for side monitors, hence why I'm looking for a different side monitor.
But yeah, that's my computer. Feel free to leave suggestions and feedback and comments below!