I think youre buying junk again.
seasonic, pc power and cooling, corsair, antec, silverstone. thats the list. any of their 650 units will beat those junk 750 units. the junk units LIE about wattage, pure and simple. they rate at lower ambient temps, thats how they get "750" watts. real world temps, its far less. the reputable units test at real conditions.
To the OP, just in case you missed it the first time, I've requoted and added emphasis.
I mostly agree with this list. I use Corsair myself, and I figure if the power supply isn't over $100, it's crap.
Where I diverge from this list, is on Antec. I have had 5 or 6 of their powersupplies go tits up for no good reason... and RMA'ing them was too much of a hassle.