This showed up a while back, I haven't tried it
This Theme Pack Makes GIMP Look and Work Like Photoshop
I have just
bought rented Photoshop for the next year for $119.
This ends the long piratey relationship I have had with Photoshop for many years. I still treasure the debate we had about that. Now that Adobe has put everything into a much more sensible pricing situation, I can no longer object.
I also rented their video editing software Premiere Pro for @30/month for two months. It's pretty good stuff.