A colleague from SP, with many editorial travel images (I think they only sell editorial), has images there, but never sold anything. Be careful that , although they set higher prices than micro, they also say they can sell cheaper for NGOs they support, or something of that kind.
I had seen the site before colleague told me he was there and was really amazed it had been done with Ktolls. I think someone here pointed them as a great example of customization of Ktools, in an earlier thread.