Free Download for Mac: Gimp is a good substitute for Costly Photoshop

Photoshop is way too costly for any hobby photographer to afford. Gimp is the real solution. Download here and enjoy. Here are all the versions of Gimp that you might need. They are all latest and differ only in the platform that you might need it for

MacOS 10.5 (Leopard) Intel
build: 6th June 2008

Gimp requires:
MacOS 10.5.2
X11 (XQuartz 2.2 or Apple X11 updated to OSX 10.5.2 version)
build by: theonehorst

The X11 package you can find on a OS X 10.5.0 install disk is too old to run GIMP (it will crash), and it can't be updated through software update. See the installation manual for more information.

MacOS 10.5 (Leopard) PowerPC
build: 1st June 2008

Gimp requires:
MacOS 10.5.2
X11 (XQuartz 2.2 or Apple X11 updated to OSX 10.5.2 version)
build by: Chachi

The X11 package you can find on a OS X 10.5.0 install disk is too old to run GIMP (it will crash), and it can't be updated through software update. See the installation manual for more information.

MacOS 10.4 (Tiger) Intel
build: 14th April 2008

Gimp requires:
X11 1.1.1 or better
build by: theBB

MacOS 10.4 (Tiger) PowerPC
build: 1st June 2008

Gimp requires:
X11 1.1.1 or better
build by:
Auria

GIMP help 2.4.0
build: 4th December 2007

Gimp help requires:
Gimp 2.4.x installed in the Applications Folder. (not fully up to date but possibly useful nonethless. Visit docs.gimp.org for the latest docs.)