photoshop died on my mac.

it won't load anymore; when i click on the photoshop dock icon it crashes my computer.

so now i got rid of my mac, since without photoshop, it's useless. how much does ubuntu cost?

About the Gimp vs. Photoshop thing: features are really irrelevant.
Starting with Photoshop 5.0 (the one that added editable text) it was already close to perfect.
I've used Photoshop for 10 years to do many, many things: photo processing, illustration colorization, pixel art, web design, scripted image generation, /b/, and general design wankery (lol wallpapers). When using photoshop, I am a fucking machine.
Fuck filters, I only really need Gaussian blur. What I really need is something predictable: for example I can tell exactly what every button and slider in the Image > Adjustments menu will do to any given image.

If I were to use the GIMP, I'd have to re-learn all that: most of the important tools behave very differently. You tweak the colors differently. There are radical and subtle differences in the tool behavior. How the mouse buttons are used, how shift, alt/option and ctrl/cmd modify things, space dragging behavior..... all that is different.

Because you almost never see any decent artist using the GIMP for creation (Inkscape guys processing their images with the GIMP don't count), that must mean that this software has absolutely no artistic or technical advantage. The only reasons to use it are GNU freedom hippie commie bullshit, or price, and investing many hours relearning things from photoshop wastes time you could use making money. It's just a nerd toy, and most of them are really tasteless, as evidenced by the ugliness of your average GNAA/Lunix desktop.