Try hitting it and seeing if it gives it a kickstart. That's what we did when our old packard bell hard drive was going out. :P
Should've tried putting the drive in the freezer, gets you about 2-3 minutes of backup time!
I would gladly try some of these things if it wasn't still under warranty. If I did one of these things it might void the warranty or something, and I don't want to risk this. There isn't really anything important on it. It's more of the fact that I want the drive as a WHOLE, not specific files.
If anything I would like to CLEAR the drive before I sent it in without physically damaging it.