Can it be used between a MacBook and a PC laptop? I want to transfer some documents, pictures, and music files to my new MacBook. Is this possible? If so, is the MacBook's firewire equilavent to the PC's usb? Thanks, I know I sound like a very clueless individual. 
I was looking to buy this:
http://store.apple.com/us/product/TP991ZM/A
I was looking to buy this:
http://store.apple.com/us/product/TP991ZM/A