I would like to take a break from my INFO paper to mention three contemporary artists I recently discovered and can’t get enough of: Jack Vettriano, Robert LaDuke, and M. Kungl. All three have strong art-deco influences and an exaggerated, colorful, and essentialized style that is bursting with joy for life. And of course, all three have been soundly rejected by the art world. If you are looking for new posters/calendars, I highly recommend all three, especially Vettriano. If you are looking for prints/originals, Quent Cordair might be more to your liking. (And my gallery!)
(The unfortunate thing about artists that mainly sell posters is that they are not friendly about allowing high quality images of their work to be shown on the web. If you know of any online galleries by the above, please let me know.)
(Update: More about Jack at the AtlasSphere. Also see his gallery.)