Mine is a Corsair 620HX.
Are you going to stress this system, overclock and game, or only do things like writing in to this forum offering possibly good advice?
For whatever the use, a PSU should deliver consistent power under all loads, and do so for some years. A PSU looses effect with time. The important thing is the real output not the rails or the nominal output, and quality generally follows price and brand. You might think of this while you look at all the PSUs on the Newegg site. You have googled of course, but you might also search this forum to see if there have been more concrete opinions posted by others.