My friend has an Iomega eGo, which is formatted to his Macbook. I have a PC and ordering a Mac, and I want to use his external hard drive to transfer a bunch of stuff from my PC to my Mac. In order to do this, apparently you have to reformat the hard drive for a PC, would this delete everything he has on it already? Or is reformatting even necessary? If this isn't possible, what is the easiest way to transfer a lot of data (music, pictures, etc) from one computer (PC) to another (Mac)?