Noisy External HD


My Cavalry Raid 1 External HD works well but man, is it noisy. It seems to be the loudest when first turned on and settles down somewhat after about 5 minutes. Anyone else having this problem? Any suggestions for suppressing the noise apart from locking it in the closet?
puerto
Get the 2,5" external drive. Ther are much more quiet.

Seagate FreeAgent Go is almst inaudible.

See the review on Silent PC:

http://www.silentpcreview.com/Seagate_FreeAgent_Go
And 2.5 inch external drives now have very large capacity.... as much as 1.5TB.... See for example the Seagate FreeAgent GoFlex 1.5TB available from NewEgg.com:

http://www.newegg.com/Product/Product.aspx?Item=N82E16822148616
I appreciate the suggestions. Since I just spent almost $200 on two new WD (Caviar Black) HDs for the Cavalry unit I want to figure out a solution other than buying new ones again. It may come to that nonetheless!
Please write the manufacturer.
Software solutions may exist to some of the clicky/ clack noises HDs can make.

Since a software update, my MAC's HD is very quiet.
It is a 1tb SATA drive.......