Metis Families: genealogical compendium
There is a book just published called "Metis Families: A Genealogical Compendium" by Gail Morin, published by Quintin Publications, Pawtucket, Rhode Island (ISBN: 1-58211-412-9). It contains great long family lists of Metis families which would be especially helpful if you are researching early French and Scots prairie folk.