I found a great bash script from Mathias Bynens on github that he uses to automate getting a new OS install just the way he likes it. It’s full of useful commands that you can use to tweak OS X to your delight. Just please don’t blindly run this script on your machine or you’ll potentially end up with behavior that you don’t like and don’t know how to undo.
I’m slowly working on molding his script into my own to keep in Dropbox and on a thumb drive so I don’t have to remember how to manually set up a new machine. When I’m finished, I’ll post what I come up with, but I thought it was worth sharing the original first.