[I have a D80] - I'd like to know if there are any portable file storage devices or anything similar that I can use while out and about taking photos. I tend to shoot in RAW, which greatly reduces the amount of photos I can take. I'm traveling abroad very soon, with only photography in mind. I don't feel comfortable using a laptop (hotels, airport security, etc.), and there won't be many photo shops where I'm headed. So, my question is: Can I transfer my photos from my camera to a portable storage device? And if I can, how much do the storage units go for?