This is just a safe place for me to keep my .vim information (as opposed to using Dropbox and copy/pasting it everywhere). And maybe someone else can find it useful, too.
To get started, simply clone this repo from your home folder, then create a symbolic link to the .vimrc file within it.
~ $ git clone https://github.com/massung/.vim.git
~ $ ln -s .vim/.vimrc .
Now, head into the .vim/ folder and get all the submodules that are being used.
~/.vim $ git submodule init
~/.vim $ git submodule update
That's it!