Help...?

Anyone out there who is a Mac-xpert, I need some help. I have a PowerBook and an iPod, and I'd like to transfer some audio files to another iPod which is used with a PC.

Does anyone know how I can do a direct transfer between Pods or what softward/plug-in I can install on my Mac to let me move the files to the PC Pod without messing up the iPod or erasing all my stuff?

I appeal to the greater wisdom of ... frankly, anyone. Please gimme a shout if you know how this can be done.

Thanks!