The whine probably does not indicate a problem developing with the drive. I've got a WD 15.3 Gig HD that I bought in summer 2000. It has always made a whine. Otherwise, it's worked fine. Then, I bought an 80 Gig WD 7200 HD in June 2003 that runs very quiet. So, my experience indicates some inconsistency in noise among different drives of the same manufacturer. I don't know how Maxter rates in the consistency-of-noise-level dept.
I think, if I were buying a new drive, whatever brand, I would return it and ask for a replacement soon after purchase and while under warranty, if it made an unacceptable level of noise. I wish I had done that back in 2000, but I did not realize at the time that the HD was the source of the whine noise.