You think its sensitive today? Back in the 80's you risked frying all the chip on your board if you touched it. I've fried several old micro-controllers while working on little personal embedded projects. Today components can take several thousand volts of static discharge. I've built pcs on shag carpet before, never once had anything fried.
BTW I wouldn't really recommend cheiftec psu's either. There are really only 4 brands I trust for consumer grade Power Supplies. Seasonic, Pc Power and Cooling, Rosewill (only for lower end), and Corsair. I would recommend that instead of investing so much in a ups you should put the money into the power supply. UPS's are expensive, lose perofrmance over the years and really are only needed for mission critical systems. Servers and some very important workstations mostly.