[mechanicalbrain]

Well the new nano is actually a flash drive and I seem to remember (can't place my finger on where) reading about someone rigging a Ipod to run an operating system. Anyways, have you actually tested if the vibrations will cause problems. As it was mentioned before, a hard drive probably wont be damaged by the vibration unless screws come undone (not likely). If it does start to skip on you you might want a foam. Try running your computer and see what a hard drive will take before it skips (I know Ive dropped computers while they were running and had no trouble but the constant vibration might be an issue).