It is my guess that if you like the Lord of the Rings soundtrack, you might like Ralph Vaughan Williams. He was a very "English" composer, who wrote grand, bittersweet, and extremely rich orchestral works.
For modern composers with a sweet sound, as I mentioned earlier, there's a whole world of twentieth century French composers who wrote the dreamiest melodies that, in my opinion, make Beethoven's "Moonlight Sonata" sound like crap. Debussy, Ibert, Ravel, Faure, Poulenc, Durey, and Satie are some of the biggies.
When I listen to Debussy's "Prelude to the Afternoon of the Faune," I can almost believe I'm half asleep on a hazy summer day in mythical Ancient Greece, watching the nymphs run around... until I see the ice on my window.