In previous releases of Ubuntu, I used Ubuntu Tweak to change the paths to the user folders (Music, Documents, Videos, etc). I can't find an option in Gnome 3 to do this, and Ubuntu Tweak's ppa still has no version for Oneiric.
Open a Terminal ed write this command:
Each row is a user folder definition (music, video...), edit as you want. For example, I did not want the videos folder in home, but in a separate disk, and changed the XDG_VIDEOS_DIR parameter this way:
OR Simply run:
Logout and Login back to effect properly.
You can still install Ubuntu Tweak and do it with that, if you dont want to mess around with the terminal.