I have an 80GB Powerbook that will be coming with me in September when I move to Europe for a year. I would like to buy an external hard drive for back-up purposes in-case something happens to the PB's hard drive. I am looking for no more than 160GB of space and the use of FireWire. My questions are: 1. Is it worth it to get a mobile hard drive? I'm thinking I might want to keep my information safe at home and leave the hard drive here. I have heard that LaCie's are very fragile. 2. Who makes the best external hard drives? LaCie? Maxtor? Any model suggestions? I have heard that Maxtor's fail easily. 3. What's the difference between LaCie's d2 and Porsche models? Is one preferable over the other? 4. Once I buy the hard drive, how do I make successful back-ups of my PB hard drive? Your suggestions would really be helpful!