IIRC, Tolkein’s dwarves weren’t what we think of as “dwarves,” either; they were somewhat shorter in stature, but were bulky, stout, strong men.
For anyone who is interested, Aussie director Peter Jackson (“Dead Alive,” “The Frighteners,” “Heavenly Creatures”) is making a live-action LOTR trilogy for New Line Cinema. The trilogy is being filmed over 18 months in New Zealand, then post-production is expected to take 18 additional months. He is using a combination of well-known actors and unknowns for the cast; for the nonhuman characters, he will be using new digital effects to “shrink” them in proportion to the humans. Some of the casting includes Sean Astin as Sam Gamgee, Elijah Wood as Frodo, Ian McKellen as Gandalf and John Rhys-Davies as Boromir. They have a website with info and conceptual art at www.lotr.net .