Who- get the book and it explains what can go wrong, what to do and not do, There are to many variables to type up here on the forum. Good Luck

" Do you smoke your sausage/cook it after you make it or just freeze it? "
all of the above.

" Where are some good places to order supplies?"

http://www.sausagemaker.com/
http://www.sausagemaker.com/FAQ/FAQ.htm