I'm moving to another country. Should I take my Xbox 360 or buy a new one there?

I'm about to move to UK from Poland and would like to know if it's better to buy a new one over there or take mine with me.

Main aspects:

  • UK have different power sockets, but adapters are available
  • Voltage is 230V in both countries
  • What about my Xbox Live account? It's registered for Poland.
  • Is there anything more to it?

Some of the answers to my question here might be of interest - although I have moved from UK to Australia