If you are booting off the Diskwarrior CD to do the repair, here is another simple tip. When you reboot, if you hold down the mouse button (or left-click with multi button mice), it will automatically eject the CD (this is a standard OS X feature, nothing specific to DiskWarrior.)
I have posted this on the forums a few times, and lots of people always say they never knew that, so I am going to post it as a hint -- maybe more people will become aware of this option in DiskWarrior.

