Hi Mr Feral, I am interested to see where you are going to move to. Out of the top 30 Economies in the world there are only 4 which have lower personal income tax than we do here. So you can choose; Korea Mexico NZ or Ireland.
But NZ and Ireland pay only 1% less than we do - so that leaves you with Korea and Mexico. I would choose Mexico and brush up on my Spanish... oh and take plenty of bottled water and get your swine flu injection before you leave.