Ok - my ibook is full to bursting with music and photos. Most of the photos are my daughter's, and since she has recently acquired a lappie of her own, I want her to move these to free up some space. Simplest solution seems to be an external hard drive that we can share - question is: can you share one between a mac and and a pc? and secondly, if yes, what would anyone recommend in terms of size and price?