I know quite a number of members absolutely adore the corsair psu's with their 5 yr warranty and build quality.
Have not owned one so cannot comment on quality but was put of by the inflated prices and , more importantly , the return to the states rma procedure that I read applies.
In end went 'cheap' by buying a Coolermaster M700 psu a few days ago which ,so far, I am pleased with (quieter ,cooler , simpler to use and set up,and a fair bit more powerful than the old Hiper Type R580 and Tagan 480 psu's I also use)
Was tempted by OCZ psu's - but was advised noisy and Seasonic - but was unimpressed with price/performance ratio.
The Coolermaster has a 3 year warranty and , I hope, RMA in the u.k.
As owned for less than a week too early to recomend but I have no complaints so far.