Wow, I'm really sorry to hear that PK Electronics went out of business. I bought one of their UPS's about three years ago, and it has saved my ass on a few occasions. One time, the wires that hook onto the power switch on my old AT case came loose and shorted out on my motherboard backplane... left a gigantic black mark about four inches long, but the power supply blew its fuse and kept any further damage from taking place. It turns out that their shop was just a single block down the street from where I lived at the time (they were in Scottsdale, AZ), so I called them up to see about getting a new fuse for it. They said to come on over, and when I got there, they gave me a small bag of fuses for my UPS for free. Very cool guys. I'll have to drive by there today and see if they really have gone out of business. I have to go over to that side of town today anyway.