i spent 2 weeks over last winter in malaga area. bone dry trails but uplifts are expensive (£40 per day+), would be best if you plan to ride uphill as well as down to keep the costs down and theres a few good guide books about to help out with where to go – its not exactly full of trailcentres! NZ would be awesome and my bet if you had the cash – can get a season pass for the gondola at QT but as others have said it ain’t massive/of whistler proportions (yet) so best using the bike shuttles around there and rotorua too if you travel around a bit. as for accomodation vans/cars seem to hold their value out there, you could buy a beaten up van, sleep in the back on a mattress for 3month and sell it for what you paid for it (my mates did this!)