The thing is, I have moved music both ways before on the other computer, so I'm confused because I'm not seeing similar options on my setup. The help section did mention something about only being able to do whatever on one computer--if that's the problem, is there a way to, I don't know, "revoke" the doingness from the other computer and tell iTunes that Lizzie is the one computer my phone needs to sync with?
(OMG WHY IS THIS SO HARD)
ETA: YAY! EphPod/CopyTrans turned out to be a snap.
(Zomg e-book! The Annotated Movies in Fifteen Minutes: Wizards!)