If I am a technician going to people's house and they ask me to transfer some file from a computer to another computer, what is the easiest way for me to do that. I was thinking about buying a firewire/USB 2.0 120GB Hard Drive and using that to do the job. I thought that a External CD Burner would be too much trouble b/c I think that you have to install a program before you burn the CD. Too much hassle. Maybe you guys know something that would work. Thanks!