I live in Vancouver and this thread has made me hate my life. Now I just have to figure out how to move to Spain.
Careful with Spain - taxation is ridiculous and "optimizing" it can be harder than you think (especially if you have substantial savings, investments that produce capital gains, property rental income and the like).
I suppose it's somewhat easier if you rent + get a regular income from abroad/freelance work. But even then you better consult a good accountant beforehand.
Look into Portugal as an alternative - their "non-habitual resident" regime can lead to 0% income tax + no taxation of capital gains, no wealth tax or any other nonsense for 10 years+. But only if you qualify - which used to be next to impossible some years ago, but is pretty straightforward right now.
P.S. you have to live in Portugal and have a rental agreement to prove it for the first 8-12 months. Once your status is sorted out there are no more minimum stay requirements (which is extremely rare).
Even snakes are slow in Spain.