The learning curve is kind of steep though (at least that's what people tell me, I personally found it to be fine in that regard) so you might want to check out their tutorials http://www.gimp.org/tutorials/ . My only real gripe with it is that the selection tool can be kind of annoying... but I mean, that's a small price to pay for 100% free image manipulation software.
I heartily recommend it!
The learning curve is kind of steep though (at least that's what people tell me, I personally found it to be fine in that regard) so you might want to check out their tutorials http://www.gimp.org/tutorials/ . My only real gripe with it is that the selection tool can be kind of annoying... but I mean, that's a small price to pay for 100% free image manipulation software.