Many different companies produce laptop cases in a myriad of shapes, sizes, and designs. If you're interested in an impact-resistant briefcase for Apple's three PowerBook models, check out the new MaxProtect II from MaxUpgrades. Why only the PowerBook models? The MaxProtect II achieves some of its protection by providing a form-fitting, cushioned velvet interior that eliminates internal motion in the event of a impact and offers protection against scratches (though you won't carry much more than the PowerBook in it for the same reason). It's covered in synthetic leather, has both internal and external cushioning, and is lightweight (1.9 to 3 pounds, or .86 to 1.4 kg, depending on size). Plus, you could make a real fashion statement by wearing a dark suit and sunglasses and chaining it to your wrist.