We have just posted our review of the Zalman CNPS 10X Flex cooler.  This cooler comes without fans allowing you to put on your favorite fans and it gives you more control over airflow and noise.  The downside to this design is that it can end up costing you quite a bit of cash if you pick up a pair of expensive fans.  We find out if the cost is worth the performance so make sure to check out our review for all the details.