I hate to be a kill joy, but just a quick warning to you all, last week i merley posted someone else's picture on a forum and he threatened me with legal action. As the image was copyright to him, I dont think legally you can sell other peoples images especially the copyrighted work belonging to the professional photographers who guard thier work jealously.
My images are not copyrighted professionally but they still technically belong to me and i dont think id be to happy to think someone was earning money off them, when it is me that has gone to the trouble of travelling / photographing / uploading them, And im quite relaxed about it! Just Warning that others are not so relaxed. Only the other day i saw another man on another forum asking a poster what he though he was doing posting his copyrighted images.