"I've been sat in my home office at the keyboard for the last hour now, figuring out how to start this article. The sheer scope of the copy I've got to write, encompassing testing and analysis of 34 - yes, thirty four - power supplies, means that I'll struggle to write the main sections, never mind this introduction. So I've been thinking about why the testing came about in the first place. If you want to write a decent intro, you start at the beginning I guess!"
This is no regular PSU round-up, no no no, how about 34! PSU's tested. And to boot they use the $16,000 USD HP/Agilent 6842A Harmonic Flicker Test System to test each power supply. Definitely worth the read.
Check it out.