The smartdisk FLASHTRAX 40GB portable hard drive ($500) gives you a place to park your digital pictures on an extended trip, freeing up space on your camera. When you consider that a 2GB Compact Flash card would cost the same as this 40GB hard drive, it's easy to see how the FlashTrax saves dough. It also saves headaches, since you can upload from almost any portable memory card, create and name folders, and view shots on a 3.5-inch color LCD. Plus, watch any video you've shot on your digital camera. Bring along that Radiohead library, toothere's a headphone jack, and the FlashTrax handles MP3s.