Step 2: Disclaimerish bit
I want to impress on you two fundamental truths of the universe:
(1) There are two main schools of carpentry.
(2) I'm in the wrong one
I have no idea what I'm doing, I just make it up as I go along. What I did worked well for me, which is why I'm posting it. However, throughout this entire process, I had no idea what I was doing, and pretty much just camped out in my apartment for a weekend with a circ saw and a drill until something turned out right. What I'm trying to say is--don't take this instructable as holy writ. Change my steps! Experiment with your own structures and braces! Dance to your own whatever.
And oh yeah--good luck!