Dotvim is a project mainly written in Vim Script, it's free.
My Vim Config
git clone git://github.com/lritter/dotvim.git
git submodule update
The basic structure of the config directory is as follows:
<dotvim folder>
|
|+autoload/ (for pathogen)
|+bundle/ (plugin directory)
|+config/ (per-plugin configs or one-off configs)
|-vimrc (gloabl vim configs)
`-gminrc (global configs for graphical ui)