The traveling geek's worst nightmare goes like this: you plug your very expensive, potentially irreplaceable electronics into some weird Romanian outlet, and suddenly sparks start flying. When traveling abroad, this vast array of voltages, frequencies, and plug types can be confusing, and whether you're packing a $200 iPod nano or a $2000 MacBook Pro, it can lead to a great deal of trepidation as well. Chances are also pretty good that whatever country you're going to is going to have an electrical system with a different voltage or frequency than your home country, and probably differently-shaped outlets, too. Whether you're moving to another country or just visiting, chances are pretty good you're going to be bringing a lot of electronics with you.