If you are unable to find a copy of the 10.1 upgrade, you have 3 options. You can download from the FTP servers (I don't know how legal this is), you can wait until a local store has more, or you can order a CD from the Apple Store for $20. The Apple Store won't have any in for 2-3 weeks though, so your local store might be quicker. Just wanted to point htse out.