OK, here is the breakdown:
Ive currently got iTunes running on my work laptop, with the library and files all stored on an external 1TB drive.
Now, for reasons I wont go in to, I need to move iTunes form the work laptop to a new PC (that I haven't got yet, but should have tomorrow).
What is the best way to do this? Obviously I'm going to download and install iTunes on the new PC and plug in the external drive, but how to I take across my credentials from my work laptop?