Zalman Reserator 2 Water Cooling System
 

With the introduction of the Reserator 2, Zalman has taken a great product and made it even better. They've addressed a number of issues that I found annoying in the earlier versions and improved the performance dramatically. I like the new look a lot and the enhanced cooling is augmented by new safety features that make the Reserator 2 an outstanding product. Silent PC aficionados will find the increased performance very attractive, allowing some moderate overclocking without any noise penalty.

With all the high end air coolers around, I find the most noisy part of the system being the hard drives...

Correct hdd's which were known to be silent are now the most noisy component. My 300 GB Seagate needed to be put in a Scythe hdd enclosure to silence it.