The last time I took my bike overseas, I packed my bike in a cardboard box I got from a bikeshop. This time, however, I want to bring my more expensive bike, and I'm nervous about doing that. What are your suggestions for packing it for the plane. Should I buy one of those hard shell cases? I like the cases that have wheels...seems much easier in a pinch. I'd like some feedback. Thanks...Schatzi in the U.S.