Bit-Tech published a review of Be Quiet! Dark Power Pro 650W
A quote from the article:
>> Be Quiet! Dark Power Pro 650W Review
Overall it has to be said that Be Quiet! has made a fantastic product - it works, it has supreme efficiency, excellent quality outputs, lots of cable variation (which is perfect for a modular PSU) and is damn near silent to boot. We were really struggling to find things wrong with it because it's really not /that/ expensive when you look at the whole package, and the only thing that grates us is the RMA to Germany - other companies offer better after-sales support.
>> Be Quiet! Dark Power Pro 650W Review