First, my setup -
Intel i7 2600K
Asus P67 Sabertooth motherboard
GSkill 8GB RAM
Corsair Hydro H60 water cooler
NVidia GTX 580
I bought this PSU with a little consternation, not knowing full well whether it would support the above setup. Having looked at a few PSU calculators online, I was told that my power requirements would come to 600W, so surely I should get a 750W PSU? But I went for this anyway because I'm a miser, and to my relief, it works! The PSU is very quiet and has the clean, black Corsair look.
Although this should be good for a new system, I don't believe it will be enough if you have an SLI/Crossfire setup, so if you plan to upgrade, just get a higher PSU. I, of course, will need to buy a new one when I do upgrade later, lending credence to the phrase "The poor man buys twice."
Something odd - the packaging came with a pouch for the PSU. In fact, the PSU was in a pouch when I unboxed it. I can understand smartphones coming in pouches, but a PSU? I certainly don't plan on carrying it around with me in public view on a regular basis, so it's not like I can even impress members of the female persuasion.
Also, it's not modular, so there are plenty of cables snaking out from it.
Overall, it's good, it's quiet.