Well, I'm eight days away from the two-year mark with this amazing machine, and I thought I'd show what I've done.
Here's how it looked out of the box in May 2015.
At the one year mark, I replaced the 8 GB of Adata RAM with 16 GB of Crucial Ballistics LED RAM, and also replaced the rear exhaust with a blue LED fan, and also added a bottom intake and twin exhaust fans up top.
At the 18-month mark, I added an HDMI capture card; the Elgato HD60 Pro.
Now, at the two year mark, I replaced the ugly-as-sin PNY GTX 970, with the GTX 1080 Founders Edition, the upgrade process gave me a heart attack; the preceding 970 wouldn't come out. No matter which way I pulled it wouldn't budge after I had removed all the screws and released the retention tab. It finally came out with a good yank, and my heart dropped when the retention tab came with it. I was absolutely certain that it had been released, having checked it dozens of times in the removal attempts.
Luckily the PC gods favored me, and I didn't break it; it snapped back into place on the motherboard.
But the urge to build my own rig from scratch hasn't gone away, and I've been strapped for space on this machine for nearly the past year, so I'd like my next (and likely last) upgrade to be a ginormous 6 TB hard drive for my Steam, Origin, and GoG libraries. One problem:
The only available SATA ports are behind the 1080. Like right, directly behind. Meaning it's either make educated guesses with the plug and my giant fingers, or temporarily remove the card. I really don't want to do that; due to my experience removing the 970; I don't trust that retention arm.