UK, Ireland / ADSL Wireless Routers ... differences between UK and Poland? [5]

i'm looking to buy my mother in law (who lives in Poland) a wireless router. Having trouble tracking down a polish router, i could get one whilst in Poland next month but would have preferred to get everything together before going.

I was wondering other than the plug, what were the differences between a uk and a polish wireless ADSL router? would there be any way i could use a UK router in poland if there are any converters available?