Is there any other good news in this area, or did I just sum it all up?
Sounds like it.
There is virtually no development of super high efficiency PSUs for retail sale because of the lack of end user demand. There isn't much profit incentive either. This is entirely the realm of OEMs -- big guys like HP, Dell. Siemens, etc.
And for a long time, there was indeed not much here.
But the Huntkey I mentioned is now actually on the market! In The Netherlands it can be bought as the "Jumper 300", a 300W 80+ Gold PSU. Five stores in The Netherlands (which is not a lot) have it now: http://tweakers.net/pricewatch/284407/h ... r-300.html
At €55-60 it's reasonably priced. Unfortunately, for me it wouldn't pay back for itself anytime soon. Just like the past 2+ years (not sure exactly when I put this into my main rig) I have an Antec NeoHE 430W PSU. It draws 55-60 watts from my wall outlet. Looking at http://www.silentpcreview.com/article273-page4.html
it probably runs at ~60-65% efficiency now. I do have 230V so that possibly makes a difference, but anyway. That would also mean my system draws 33-39 watts DC.
According to http://www.anandtech.com/show/4069/hunt ... lus-gold/6
the Jumper/R90 would be approximately 85% efficient at such a low load. So if I bought it, my system would draw roughly 39-45 watts.
Assuming my PC is running 12 hours a day each watt costs €1/year. So in the best case, I can save 60-39=€21/year. So the Huntkey would need three years or so to pay back for itself. My NeoHE is already very silent, so I don't really need to replace it for that.
Also, my ancient ATX case has no proper space for PSUs with a fan in the bottom, so some modification would also be necessary. If I had to buy a new PSU now it would be a no-brainer, but I guess that as long as my NeoHE is working well, it's not very sensible to replace it.
But maybe this post helps someone else.