I was considering one for Gimp and one for Darktable. Both are about $60 apiece and I do not have that kind of money for both of them.I believe the GIMP course takes you from idiot to advanced while of the Darktable courses I sampled it seems the guy who produced the courses teaches quite well. The audio review I heard for this course was quite positive and from a comment about the review I read getting a good review from them is not easy. Apparently they usually say the old way is better.I believe I'll get the Darktable tutorial first. But from what i have heard everything you can do with Darktable you can do with GIMP but the reverse is not true. Hmmmmm... Any comments?--:-)~MIKE~(-: