Speaking of training your eye to see more and to see better, listen to Art Wolfe and find out how he finds the frames that he photographs. Having a background in art history certainly gives him a leg up, but with keen awareness, better visual vocabulary, and willingness to experiment at the risk of failing may reveal wonderful photographs before your eyes. And, all that may be without traveling thousands of miles at the expense of that many dollars and hours, to photograph a scene that was photographed thousands of times.
Art Wolfe admits, and in fact appear to be proud of not knowing much about the cameras and related technology. He gets his inspiration from painting and painters but does not aspire to be a painter. To see more of his work visit his Web site, especially the Human Canvas project.
Keep looking, looking with deep awareness will lead to better seeing. Here is Art Wolfe.