We went to see Howl's Moving Castle last night, it was brilliant. I would like to read the book now. The characterisation was excellent, and the scenery was beautiful. There's a particularly good bit where Sophie is looking at the waves lapping on the shore of a lake, and the water comes in, then as the wave recedes, the sand takes longer to dry out. It's beautiful. The fire demon, Calcifer, was really well done as well - it's amazing how much character you can get into a fiery blob. The characters were complex and interesting, especially Howl. I loved his shamanic transformations into a big bird of prey.
Rumour has it that Miyazaki is going to adapt The Wizard of Earthsea next. That would be brilliant. I'm sure he will do an infinitely better job than the ridiculous SciFi Channel version.