I've just uploaded RMagick 1.14.1 to RubyForge. This is a very minor update to RMagick that fixes a compatibility issue introduced with ImageMagick 6.3.0. This issue causes RMagick installation to fail during compilation.
(BTW, I strongly recommend checking out Corban Brook's _Render Great-looking Collages with Ruby and RMagick_ article at http://schf.uc.org/articles/2006/10/18/render-greatlooking-collages-with-ruby-and-rmagick.)
RMagick is available as always from RubyForge: http://rubyforge.org/projects/rmagick/. (This release is not yet available for MS Windows.) The RMagick home page is http://rmagick.rubyforge.org.
RMagick is an interface to the ImageMagick (www.imagemagick.org) and GraphicsMagick (www.graphicsmagick.org) image processing libraries. RMagick supports more than 90 image formats, including GIF, JPEG, PNG. It includes RVG, a 2D drawing API. RMagick comes with comprehensive HTML documentation.