And for my most recent visit to this thread (it's really turning into VoraciousGorak's venting thread, isn't it) not only did my A/C finally die overnight (I can't even force the fan to spin, the rain last night murdered the rusty fan motor at last) when I tried to wake my computer up to shut it down for the day, it went ahead and took care of that before I could tell it what to do.
I think the power supply is dead. Corsair 750TX powering a single HD 6950, a 2500K, two hard drives, and an SSD. Not exactly heavy load, even at full Folding load, but I can't even look at it till I come home from work IF the A/C is fixed. To say that I'm annoyed is quite an understatement.
I'll probably be paring down my Folding a bit even after the A/C is fixed, a couple of my systems are running pretty hot even with the A/C running full.