Tek,

if your 60GXP drive starts making a scraping sound, get a new one, otherwise I wouldn't worry about it.

If it does die on you, take it out and put it in a freezer. This is a trick I picked up by reading around. Once you get a new drive, take it out of the freezer, pop it in and back up everything. It supposedly works only once.

I've had mine for over a year now and it seems fine, but sometimes odd things do happen with it.