One of the best nuggets from the Going Overseas: Logistics for Adults (or MQ 230) class was a discussion on the benefits of protecting equipment from black outs and brown outs. We learned that brown outs can be as damaging as black outs and the best way to deal with brown outs are with line regulators.
I am new to line regulators -- defined as "A type of power-conversion equipment that manipulates filters, noise, the degree of regulation or voltage changes that result from incoming AC power."
Looks like a popular and reasonable is brand APC. From their website: "Protect your sensitive electronic equipment from brownouts and over voltages with APC Line-R automatic voltage regulator. Uncorrected voltage fluctuations gradually degrade the life of electronic components, potentially causing premature failure. The Line-R not only adjusts voltages to safe levels, but also provides surge protection against electrical surges and spikes - even lightning."
I found one at newegg.com that handles 6.5 feet and 4 outlets for $43.