Emacs-easy-rails-setup is a project mainly written in Emacs Lisp, it's free.
Easily setup emacs for Ruby on Rails programming
This script should install all plugins for emacs relating to Rails and configure them to all work.
This has been based on Ubuntu 810, but could be adjusted to work with other OS's/Linux Distros
Installation
Ports used: cedet-common - collection of Emacs Dev tools cedet-contrib css-mode debian-el ecb ede eieio emacs-goodies-el html-helper-mode ruby-elisp ruby1.8-elisp semantic speedbar yaml-mode
emacs
emacs22-bin-common
emacs22-common
emacs22-gtk