Na, I had a cheap CoolMax one that went out one day and took all but my CPU with it. Serves me luck, for buying a cheapy brand like that. Luckily I was able to get replacements for evereything, and got a refund on my PSU. Now I got a OCZ, which I trust much more.
I didn't do any work without a PSU, the sleep stuff I did over email with a "victim", who did all the testing and dumping for me (great guy, he deserves a medal).
The atheros kext problem may be because new mac's lack atheros cards (they use brodcom) and therefore it hasn't been updated.