Like New Eden said, my current desktop is the best I've ever had. I built it two years ago, and I still love and adore it. c:
CPU is an Intel i7-3770 @ 3.40 GHz.
I believe it could go up to 3.9, but that seemed like a bit much.
Video card is an Nvidia GTX 670, 4GB of vram.
16 GB of RAM. It's G.Skill Ripjaws series, in red because aesthetics.
(Case is red and black, and my motherboard, an ASUS Sabertooth Z77, is black. RAM definitely needed to be red.)
Roughly 4.25 TB of space. Totally not overkill at all.
That breaks down into:
256 GB SSD - a Samsung, 830 series, I believe.
1TB HDD - WD Blue
3TB HDD - WD Green
To be entirely fair, the 3TB was a more recent splurge purchase because it was on sale for the same price as the 1 and 2TB drives were. I couldn't help myself.
And I stuffed all of these things in the beautiful Cooler Master Haf-X full tower. I'm sure I could have gotten away with a smaller one, but sshh, I liked the full tower. No regrets there. For being a ginormous steel case, it's so quiet that I forget it's running sometimes, haha.