a very entertaining write-up on home sausage making by food writer Nicholas Robinson on his website, www.montrealfood.com/sausages. Robinson buys his casings at Boucherie Jos & Basile - 152 Mozart Ave. E. (cross street Casgrain Ave.), (514) 274-6358 - where he picked up enough for two kilograms of sausages, for about $5. They have both lamb ($5 per 100 g bundle) and pork casings ($19.99/ kg). Any leftovers can be stored in salt water in the fridge. I highly recommend a read-through of Robinson's trials; he also includes some excellent tips and recipes.