Joined: Dec. 2007
as to hand powered onion "dicers", i have two: a wally world onion dicer that produces 1/4" sections of a veggie (works great for pico de gallo with peppers and maters). that was in the $12 range .
a bass pro shop gizmo that was designed to french fry taters. it has two sizes of grid and the larger is about 1/2 inch. cost was in the $20 range (on sale).
it will fling onion sections across the room. :)
for stir fry, i still have to slice 'em by hand to get the correct size - 1X1 or larger, usually larger.