Install XCode. The big one is needed to compile MacVim, so don't skimp.
Using the system git, clone this repository. (This will most likely prompt you to install the command line tools)

    git clone --recursive https://github.com/tedkulp/dotfiles.git ~/dotfiles

Run the brew command. Make a sandwich... get a nice beverage... maybe see if something is on Netflix. This will install a lot of software from source.

    ~/dotfiles/brew

Now, optionally, run the cask command. This will install some nice Mac software.

    ~/dotfiles/cask

Run the dotfiles command. This will symlink everything into place in your home directory. If you have some secret files to put into the dotfiles/copy directory, now would be a good time.

    ~/dotfiles/dotfiles