The be quiet! Dark Power Pro 750W has been designed very well in every aspect I can think of. It offers four PCI-Express video card connectors for all your future video card configurations. Remember, the GeForce 8800 GTX in SLI needs a total of four connectors (two for each card). Even with a power hungry Crossfire system connected, all lines were stable. What is really impressive is the high efficiency of about 77% on our testbed, making this the most efficient power supply that we tested so far. Since the efficiency is high, there is also very little heat coming from the PSU which means that the fan can run slower. This results in a very quiet power supply, even under load. Be Quiet! advertises the fan to be temperature controlled, in our testing the fan always remained at its minimum speed.
The whole modularity concept worked out very well for the Dark Power Pro 750W. It offers an insane number of connectors, total over 30! With a traditional PSU this would be a major cable mess, with the Dark Power Pro you just connect what you need. The included short cables that have only one 5.25" connector on them comes in very handy when building mininmal system configurations.
Even though the be quiet! Dark Power Pro 750W does not come cheap it will sure last you for more than one PC generation you will have.