I installed it directly into a Scythe Silent Box, and from where I am I cannot hear the seeks (and much less the whine).
Totally recomended! Maybe this is the quietest HD I have owned (besides barracuda IV).
Hope it helps
For your information, my quiet rig:
Akasa Acrilic Case with Acoustipad foam.
PSU silverstone 600w modded with a Nexus Fan Swap.
2 120mm akasa amber at the lowest possible voltage.
Scythe Ninja (passive) over my x2 3800
Polar Freezer (passive) cooling an X700 pro
Zalman cooler (passive) in the nforce chipset