Just got a new iMac today, so I'm trying to get my project up and running on it. Things were going well until I got to RMagick. I always forget what a pain in the ass that gem is. I was lucky this time, after a little blog surfing, to find a great post by "hocuspokus" that provides some excellent help in the form of a shell script you can run to make it all happen (NOTE: you must have XCode developer tools already installed, it's on your Mac OS X Installation DVD). In the interest of giving credit to the right person, I'm not going to link directly to that script, but am instead just going to give a little link-love to the blog of the guy who made my day so much better when I found his website:
CLICK HERE TO GO TO THE HOCUSPOKUS BLOG SO THAT YOU CAN STOP TROLLING AROUND THE INTERTUBES TRYING TO GET THAT DAMN GEM INSTALLED ON YOUR NEW MAC!