I've recently started the move over to the Netherlands. The things that were keeping me in the UK (the last vestiges of our socialist governmental policies) have been torn to shreds by the current Tory government. I've also lost any hope that the British public will try to fight for it back. It feels like people are accepting a slip back into feudalism with open arms.
I'd go to the US or Canada happily. I'd go to the EU. Singapore has a company office and Australia is great from what I saw on holiday.
I have a chat scheduled with my boss in Sept, I might start sounding out a transfer.