Much of what has already been said is valuable advice, particularly duvet covers, and mattress pads. We live in an unfurnished villa and bought most of our furniture (not beds) second hand. I did ship out some our books, pictures and teenagers' "necessaries". Also I would have brought our own cutlery and good quality saucepans as these are either hard to find or very expensive! Be careful about medications if you need any as there are strict rules about what you can get here. Bring plenty so there's time to find out what they can give you here!
Good luck - it's a great place to live :)