I wonder why you need such a fan to cool your current system? Is it really running that hot? And by the way, if you plan on getting a Yorkfield, my advice would still be... to keep it very simple. Don't over-complicate things with a whole bunch of fans or anything. Heck, if you overdo it, the fans could rock the board and make things quite... unstable. Just keep it simple, make sure everything is secured, and allow room for the system to breath.
Just telling ya... because I am using a dead-quiet system that's overclocked quite... hard.
The temps are good enough, too... considering how hot it is here.