You may already know about them, but if not. Try going to "trapper predator caller .com" They put out a magazine which comes out every other month and they have articles on just that sort of thing. I have not done much trapping and was just interested in doing it for fun more than turning a profit. I have really learned alot in the past year in their magazine. i have the October 2010 issue and their is a several page article on "fur handling and preping for sale". Hope this helps.