A good wok is one of the most versatile pans in the kitchen. Beyond being the best choice for a stir fry, it's also the ideal vessel for deep-frying, steaming, and indoor smoking. But as with most things, not all woks are created equal. They come in a dizzying array of sizes, shapes, metals, and handle arrangements. Fortunately for all of us, the best woks also happen to be on the inexpensive end of the scale. Here are some things to consider when you buy one.