I'm looking for a service to turn some of my racing, and possibly other, photos into posters. It would be about 12-20 inches at the longest edge to keep the cost down. Also, I'm not sure about the quality needed for the various sizes. It should be fine at those sizes. I've searched for this online before. There were some reasonably priced options, but I figured it wouldn't hurt to ask. Has anybody used such a service or seen anybody that has?