We have a cookbook that is nothing but different types of sausages made from venison. We used one recipe out of it to make brats and we also picked up a premixed variety pack from the sporting goods section at wally world. I was surprised to find that the recipe out of the book tasted almost exactly like the premix we tried.
The variety pack (which I have seen at Bass Pro, Gander Mnt, Dicks S.G., and Wal-Mart)comes with enough spices and hog casing to make 5lbs Beer and cheese brats,5lbs regular brats, and 5lbs italian sausage.
I will try and find the name of the book we have, it is great with so many types of sausages I wont even begin to list them.