Railscasts-Theme-GUIand256color is a project mainly written in Vim Script, it's free.
A railscasts color theme that works in 256color terminals as well as gui
This is a mirror of http://www.vim.org/scripts/script.php?script_id=2175
This theme is based on Josh O'Rourke's Vim clone of the railscast textmate theme ( vimscript #1995 ). The key thing I have done here is supply 256-color terminal equivalents for as many of the colors as possible, and fixed up a few of the funny tags for editing e-mails and such.
You can see a side-by-side comparison at http://zork.net/~nick/screenshots/colorcomparison.png