I wanted to know what kind of hard drives you photographers use when on vacation. I am going to Europe for a few days but only have 5 gb of CF and XD space. I would like to shoot RAW but I am going to be limited with my 5 gb. That's why I am looking for a portable hard drive in which I can store about 20 gb of photos. Which ones do you use? I want somethings not too big (don't need more than 100 gb) and something that's not too expensive.... Thanks for the advice!