I was doing some mentoring today with online restores, so I thought I would share it with my blog readers.  The most important thing about online restores is that it is only supported in SQL Server 2005 and later versions.  In addition, for the bulk-logged recovery model the following conditions must be met in order to complete an online restore:

1. All of the log backups must have been taken and completed before you start the online restore.
2. If you have bulk changes in the database, the files must be online.
3. All of your bulk changes must be backed up before starting the online restore process.

In addition, I have seen it recommended that you switch your bulk-logged recovery model to the full model before starting the online process and then switching it back afterward for smoother recovery.  Enjoy!