Ask Slashdot: What Hardware Is In Your Primary Computer?

An anonymous reader writes: Here's something we haven't done in a while: list the specs of your main system (best one) so we can see what kinds of computers Slashdot geeks use. Context would be interesting, too — if you're up for it, explain how and why you set it up as you did, as well as the computer's primary purpose(s). Things you can list include (but are not limited to): CPU, motherboard, video card, memory, storage (SSD/HDD), exotic Controllers (RAID or caching), optical drives, displays, peripherals, etc. We can compare and contrast, see what specs are suitable for what purposes, and perhaps learn a trick or two.