Sbutils is a project mainly written in Vim Script, it's free.
Some utilities I find useful
This is a mirror of http://www.vim.org/scripts/script.php?script_id=740
This is a collection of utilities that i will be updating regularly. I'm putting it online just in case somebody wants exactly what's there, if you're just browsing, you should probably skip this version.
Starting with 2 utils: