I would like to get a poster of the Fellowship, but I don't know where to get one!!
My sisters got a lot of posters by going to theatres, bookstores, etcetara and begging like crazy. It worked.... their room is decked out. They must have over two dozen different images of various characters. (For some reason, one of my sisters insists Boromir is hotter than Aragorn. I don't understand her at all.)
I also have seen posters available online, through various fan sites or Ebay. Again, TheOneRing is a good place to start looking.
Ebay!! I bought two there. One of Aragorn and one of the hobbits and the black rider.