If you’re going to be using a smoker for grilling, you’ll definitely need a quality digital thermometer. Some of these grills have the thermometer included or built-in. Make sure you check before you buy to see if you have to buy an extra one. If you really want to make a good investment, look for a dual probe digital thermometer.
A chimney starter can help get the fire going, as well. As any good griller, you’ll definitely need a good set of knives—including carving and slicing ones.