Photoshop alternative: GimpShop
Way back I used to work with Adobe Photoshop (yes, way back, when version 4.0 was current). Nowadays, the GIMP (The GNU Image Manipulation Program) is a perfect free alternative. It even has slightly more functionality than Photoshop 4.0, so the leap shouldn’t be too big for me.
However, somehow all those Photoshop menus and keyboard shortcuts are stored into my permanent memory and make working with the GIMP more challenging than needed. I just discovered the solution for this: Gimpshop!
This is a repackaged version of the GIMP, built for OS-X. You really should give it a try if you are familiar with Photoshop but want to give the GIMP a decent chance.