This is the mixer I referred to a couple of messages ago. If you watch for sales, it can be had for about $99. In my mind, it is worth every penny. If you did hundreds of pounds of sausage a year, a motorized version might be good. Or, if you do a lot, one of the versions that tilts to dump meat out would be good. I make less than 200 pounds of sausage or jerky a year, so the crank works fine for me.
One more point about using it... It will not mix a small batch of only 5 pounds. Ten pounds is the minimum to get much mixing. It mixes very well from 12-20 pounds, though you need to be patient if the mixer is completely full.http://www.lemproducts.com/product/manual-meat-mixer-20-lb/sausage-meat-mixers