I suppose a big, fat lightning strike could do in a 551 KSU, at least to the point where trouble shooting the components isn't worth it to some. It might be harder finding a compatible power supply, for example, than a whole "new" KSU.
The eBay thing has them from time to time, often selling in the $50+ range. I just checked and only see an ITT 584C KSU (item # 300624651028) at $40 + $15 shipping.
Guys, how "different" is a 584C to the 551 that Macy's friend is used to?
