It will be easier as they are using same plugs as Poland, and I won't need to buy 110V-220V adapter as with US Macs.

Click to expand...

Fortunately even old macs are equipped with wide range input switching power supplies (usually something like 90 ... 240 Volts AC, but always look at the sticker beneath the power input socket). Only the power cord might differ depending to the country and can be replaced easily.