My family built this PC about 5+ years ago.
It runs most non-demading games, like Red-Eclipse and Minecraft just great, but I'm now more into recording and editing video and images.
I'm using Linux Ubuntu 13.10 because I wanted to see how it feels, and I'm now a Linux addict. I've tried moving to Windows 7 back but it was somewhat tricky to understand so I gave up.
On topic: The computer is pretty loud (I'll soon replace the fans), and it runs like 50c or something like that under some load. II started overclocking it and I've reached 3.592GHz, but it's not very stable, so I made it 3.52GHz which is almost he same but much more stable.
Cable management is horrible, because the case is pretty old and no cable management space.
I'm using a Samsung 840 Pro SSD for all my everyday programs, and I store photos and stuff that I don't access frequently on my Hard Drive.
I've put an eSATA thingy for another 80GB Hard Disk I managed to rescue from a broken PC I found in the street.
In one of the pictures you can see an LED light that says "Poseidon". It's one of the case's features which I discovered a few weeks ago.
As you can see, I also have my computer cat to enhance my computing experience :3
I'll replace that build with a new one in 6 months, because my Custom Computer Cat feels a bit bottleneck'ed.
EDIT: I cleaned the LED projector thingy and added another DVD drive. It's very sexy now!