If you're willing to do a bit more work, you could try a recipe I've been working on. It tastes more or less like Johnsonville or Hillshire Farms all-beef summer sausage, maybe a bit leaner.
By no means as easy as Stogie's method, but a bit more like what you buy in the store. I use a KitchenAid mixer grinder attachment with sausage stuffer tubes. Most little grinders now seem to come with everything you need.
I bought my casings and chemicals from Con Yeager Spice Company. They were very helpful and delivered fast. The other places mentioned above, LEM, Sausage Maker, and Allied Kenco, also carry what you'd need.
I've got a lot to learn about sausage making, but as usual I was amazed at the ease of the smoking process.