Nicely commented [.vimrc][vimrc], 256-color, and a [useful set of plugins][gitmodules] managed by [pathogen][pathogen].
Adapted from my friend PDA's config
# backup what you've got
mv .vim .vim-backup
mv .vimrc .gvimrc .vim-backup
# grab from GitHub
git clone --recursive git://github.com/dmateos/dotvim.git .vim
# symlink the rc file into your home directory
ln -s .vim/vimrc .vimrc
``