Get a Corsair HX1000 and be done with it, its got a 5 year warranty, chances are in the next 5 years you will be upgrading again and need the extra power it offers, my Corsair HX620 went pop recently (as a lot of them seem to do) but I can tell you the HX1000 is a completely different animal than the 620, the 620 would make odd crackling noises if I chose to switch the PSU off after usage... not good, the 1000 is fine when I do this.

Ultimately the 620 died on me, but fortunately never took out anything with it.

Sad part is, I've got an Antec 900 case, so PSU's have to be built with the open fan grill facing upwards and at the bottom of the case, on the very first day of building this rig and while fitting a graphic card, I dropped a screw and it fell into the PSU So out with the PSU to try to retrieve the screw, upside down, it would not fall out, shake it a bit, still nothing, so I had to unscrew the fan grill and pull out the screw with tweezers ... dodgy, lots of high voltage I know ( DON'T DO THIS AT HOME FOLKS) but as a result I had to destroy the "warranty void if removed sticker" so even though the PSU went pop within one year after the build I cant get it sorted

I live and learn.

Moral of the story is ... if you have a case with a PSU at the bottom and its fan grill has to face upwards, cover the fan grill with something until the build is complete.