Vimtim is a project mainly written in Vim Script, it's free.
a Vim configuration that can be used along side your existing Vim. Includes several Vim plugins for auto-completion, snippets and a project/directory navigator.
To install vimtim run the following command in your home folder.
git clone git://github.com/timpickles/vimtim.git .vimtim
Either add the following to your .bashrc file to always use vimtim or just type it into the terminal to change just the current bash session
export VIMINIT="source ~/.vimtim/vimrc"