Sorry if these have already been mentioned and I missed it, but here's a few, some of them will take some searching,
Oldies:
Unico (there's two unico movies, both are great, should be able to watch in parts via Youtube)
Sea Prince and the Firechild
Journey Through Fairyland (its like if you took the fairy segments from Fantasia and made an entire movie of it)
Last Unicorn (of course)
Destino (think it finally got a new release recently)
Rupert and the Frogs
Plague Dogs
Watership Down
Not as pretty, but very interesting:
Fire and Ice (netflix has it)
The Devil and Daniel Mouse
Max and Mary (sad, ugly animation, but fantastic movie and well done Stop Motion)
I'm sure since you listed two Miyazaki movies you've already looked up other Studio Ghibli films, but if you haven't, here's my favs:
Nausica of the Valley of the Winds
Castle in the Sky
Pom Poko
Other Anime:
Cat Soup
Dead Leaves