How do I disable or get rid of the startup sound my Mac makes? Everytime I turn on my Macbook Pro it makes a start up noise. This is annoying since there is no volume or ability to turn it off. I just don't want the sound to play at all.

How do I disable this startup sound?
You can use StartSound.PrefPane which basically just sets the volume to 0 when you shutdown and then turns it back up after login.