Oppdal being the nearest ski-resort to the town I grew up, I KNOW it's a fantastic place. Theres slopes everywhere you look, and they are at all levels and skills. Oppdal itself is quite a small place, but has got a fair share of good places to eat and drink. But as everywhere else in Norway, it's gonna cost you!! The nearest airport to Oppdal, is Trondheim, and it would take about 2-3 hrs by bus. Theres also miles and milkes of cross country slopes for those who like that. And you're almost always guaranteed snow from November to March, seeing as this is one of the colder places in Norway. Happy skiing!