At Newegg the largest high quality ATX PSU is 380W.
Where can I find a selection of larger HQ ones, please?
(Incidentally, I need ATX for my older computers. My video card upgrades call for more than 380W; 400W might be enough but I'd feel more comfortable with 500W or 600W. I've read that SeaSonic brand is good, and read that they also make PSU's branded Corsair and Antec.)