Electric Grain Mill by Wondermill
This grain mill has won the title Worlds #1 Rated Grain Mills in 5 consecutive years. It let's you mill over 100 lbs of flour in an hour. Features a 1250 W motor. Grinds wheat, corn, rice, quinoa, amaranth, legumes and beans.
Still not sure weather it will mill one specific good? The manufacturer has a great list (including videos) of goods the mill will easily mill.