I really like the idea of getting her excited about her new room. Could you tell her stories about a little girl who moved to a new house and a new room? If you made that part of your story routine every night?
Also, one idea I like from the No Cry Sleep Solution for Toddlers is have a little celebration with a new pair of jammies and a book or something. If you can get that book out of the library I strongly recommend it. We've just transitioned A out of our bed to a crib mattress on the floor. We call it his "special little bed". Adding special to anything seems to be appealing to kids. Peas are peas til they are special peas.