Lol. Not at you, at PCP&C.
First of all, I want to know what "these high-end graphics cards" are. Seeing as they're using an FX-60, and seeing as the G80 is a relatively recent release (and that their "new myth each month" would put #5 at quite a few months back), I think its safe to say that they aren't using Dual 8800GTX video cards.
After having that established, I call bollocks.
Their claim is too ridiculous to be real (the Silverstone 600W has 55Amps). No, I'll wait for someone more reputable, and not someone who doesn't only put out 610W, 750W, and 1kW
PSUs on Newegg to say something on the matter. Honestly, you would get the exact opposite response on a website of another low-Watts PSU maker.
The problem comes from that fact that while many reviewers on websites have above-average knowledge about computers, they aren't exactly experts in PSUs. Most of them will say, "Oh, I ran this, this, and this on this wattage PSU and it works." They don't know much past that.
That said, 30 Amps is just the requirement for a good PSU. When running something like Dual 8800GTXs, I'd look for around
45 Amps. I wouldn't try to run Dual 8800GTXs on the Forton, for example.