An excellent article by Smashing Magazine for any web developer who wants a start up knowledge on Ruby On Rails.
Introduction to Ruby for Mac OS X : The Principle of Least Surprise by Jim Menard
Apple Developer Connection has this must read article, which is for everyone who is beginning to work with Ruby on Rails on Mac OS X Leopard.
For all my software development days ahead, I want them to be well spent on a Macbook Pro. The main reason for me deciding to take the plunge to the Mac world is because of the following reasons: