The ultimate gaming rig.
No case for easy access and better cooling. Motherboard: some supermicro server board of ebay, for better stability. Dual quad core xeons, because modern gaming is all about dem cores right?
16GB memory - more dimms = better.
Custom heatsink mounting for better cooling.
HD 7750. Gives me 20-30 fps on most titles, for a more cinematic experience. Anything more is overkill.
High quality, custom 3D printed GPU mounting system.
750 watt gold rated modular power supply; not at all overkill.
I prefer Hard drives over SSDs - the longer loading screens give me time to contemplate the meaning of life.
On a more serious note... this was my first PC, built a couple years ago when I was very short on cash. The PSU was leftover from a short stint of bitcoin mining (I almost broke even!). For about $350 usd all up, this was a good way for me to get into PC gaming, and for video editing it's actually fairly great.