require that is compatible with ruby 1.8.x and 1.9.x

require File.expand_path(File.join(File.dirname(__FILE__), 'player'))

This makes : require 'player' work on both Ruby 1.8.x and 1.9.x

ImageMagick Installer

Download the script from https://github.com/maddox/magick-installer/blob/master/magick-installer.sh and run it.

ImageScience on Snow Leopard

1) Download and install MacPorts http://www.macports.org/install.php
2) sudo port install freeimage
3) env ARCHFLAGS="-arch x86_64" gem install RubyInline image_science