Well, this may not be the best solution, but when you plug your Motorola Droid in to charge it, it will turn the phone on.
My Motorola Droid's power button unglued itself from the circuit board when I took it apart. So I was left with no button at all.
To put your phone back to "sleep" without the power button, I found a couple of apps that made for a good "work around". One was called "Off And Lock" (I think) and the other was "Shake Off" (I think). "Shake Off" was cool, but was a grade B app that loaded some kind of adware on my device.