Hi
My wife's iPhone is synced to my iTunes in my windows user name.

I've got one now, and want to move her iTunes onto her windows user name, as we won't want the same stuff on.

What's the best way of transfering her iTunes to her user name?

Thansk for your help

Make two playlists One for your wife and one for you.
Send her music to her playlist and your to your playlist.

Under the music tab when phone is plugged in select sync selected playlists and just tick which one you want the phone to sync.

Simples!!

I second marlman, create two playlists by far the easist way to deal with 2 ipods

Or, set a shared folder on your wife's user name.

Log in using your user name and copy all the files your wife wants across to the folder you just set up sharing on your wife's user name.

Log in in your wife's user name and import all the files into iTunes, set up the iPhone to sync and delete all the files from your user name.

That way you can keep them entirely seperate on two different Windows accounts.