I was curious about how one would go about installing gnome on darwin. As far as I know it must be harder than FreeBSD because there doesn't seem to be any ports for it.
Would you have to first set up a build environment (GCC etc...) and then compile it from scratch? or is there an easier way?
Would be quite a novelty using cheap arse Mac OS X
After that you must get the installer for one of the two main GNU packages ditributor : MacPorts or Fink.
Whether one or another is a matter of tastes. Both install their packages in their own directory. You will have to adapt your bash profile in order to access the binaries. After that through CLI or IHM you can get in the download section of the Apple site, you may download and recompile nearly any GNU stuff you want, even Scribus, Gimp, etc.