Both the UK and especially the US are going through a rough spot. I would look into Ireland (not so warm climate) or English speaking Asia (maybe insane property prices in tier 1 cities).
One suggestion is the Isle of Man. It has very mild winters. It has very low tax. There are some tech jobs. If you don't mind living on a quiet small island without much to do, with a lot of grey skies, it could be an interesting possibility. The one disadvantage is that housing is relatively expensive.