Couple notes on this build, one of the four RAM sticks I received was dead, the videocard only has one DVI output, the rest are HDMI and DisplayPort, all my monitors are older so I'll just have to pick up a DisplayPort to DVI cable for $10. I also didn't realize that the motherboard I selected only has 1 USB2.0 header, and two USB3.0 headers. I need a USB2.0 for the USB ports on the front of the case, and also the CPU cooler needs a USB2.0 header to plug into, you can buy an adapter for a few bucks, but I think it's worth pointing out.
I'm going to use it for gaming @1080p, I'll only be gaming on a single monitor but I'll have 2 monitors connected to it. I do a lot of multitasking hence the i7 and the 64GB of RAM.
One of the jobs this computer is fulfilling is HTPC so I wanted to make it pretty quiet. I'm pretty impressed with how quiet it is. I love the Fractal Design Define Mini case, this is the third build I've done with this specific case, and I think the 5th I've done with Fractal Design in general and I love the quality of their sound reduction, build quality, and attention to detail.
The graphics card and power supply I specifically chose because the fans shut down on them when the load is low enough. I love this feature, makes it run quieter and I assume the fans will last a lot longer before bearings start going out than a fan that runs 24x7
Total power consumption: 35W at idle, 197W under load with rare quick spikes around 400W
Edit: I'll try to post benchmarks here as I run them
3Dmark Time Spy 4244
3DMark Fire Strike 11034
3DMark Sky Diver 29131
3DMark11 Performance 15329