What if i just installed a new version of iTunes on computer 'B', how could i get everything from iTunes on copmuter 'A' transfered over? Just sync the iPhone up to cmputer 'B'?
So I have two Macs, and wanted the same iTunes material on both.
One is my desktop, one my laptop.
Here's what I did.
I bought a piece of software called Martian SlingShot
This allows you to set up Publisher files or folders on one machine, and then either manually or automatically sync them to Subscriber folders on a 2nd machine.
It even has a smart playlist option specifically for iTunes - where it will sync only the files you drop into a playlist on your iTunes.
I however use the basic file sync feature, and sync the whole iTunes folder from my desktop to my laptop using the software, over my network.
This means that it copied all of my song files, and the very important database file for my iTunes, and it works perfectly!
The folder I copy is under Music on my Mac, and is called iTunes.
It contains iTunes Libarary, Album Artwork, iTunes Music, previous iTunes Libraries and iTunes Music Library.xml
I have it set to manual sync, i.e. I tell it when to do it - but you can set it for auto sync, i.e. every time both machines are switched on, and are on the same network.
I also use slingshot to back-up my work folders from desktop to laptop, so I always have the latest documents with me when I'm out with the laptop.
Easy, cheap, simple, and it just works!