If the seller permits opening the case you could try to see if drive OEM will issue an RMA. Usually you can do this on-line and it wouldn't require you to disturb the drive from the cradle as most drive serial #'s are on the label. Repeated clicking within 3 years of mfg usually will get an RMA replacement, at least that's how its gone on any of the 6 desktop HD's I've ever RMA'd (plus 1 PCMCIA drive). If you have a laptop you could put it in that to see if it spins up properly (won't of course boot, but you can listen to see if the clicks go away).

-Zeke