Also, I know they require an area with controlled lighting to be effective, but I would love to see some moving portraits in Leaky, if not added to the Three Broomsticks. Out of all the amazing sights and sounds and effects in Hogsmeade and Hogwarts, it's the relatively simple matter of the moving portraits that really clinched the whole experience for me. The first time I visited and every time since, that's what does it.