MacPorts

The MacPorts Project is an open-source community initiative to design an easy-to-use system for compiling, installing, and upgrading either command-line, X11 or Aqua based open-source software on the Mac OS X operating system.

It is considered superior to Fink as all the packages and their dependencies are installed within the /opt/ folder only, keeping all possible 'garbage' well separate from the Mac OS system.

Installing it is very easy: just follow the link

http://www.macports.org/install.php

and instruction and you will be up and running in few minutes.

Also the documentation is very comprehensive

http://guide.macports.org/

Selfupdate

Once installed type on the Terminal

'sudo port selfupdate'

in oder to sync the local ports tree with the global MacPorts ports repository so you will have the latest port versions.

Install Port

In order to install a port (e. g. ImageMagick) type

'sudo port install ImageMagick'

MacPort will automatically find and install all the depend package.

Dependencies

In order to see of all the possible dependencies of a given package, type

'port deps ImageMagick'