RE: New Years - Cusco may be a better bet for new year's eve - I had a blast there last year in the Plaza de Armas. Just be careful of pick pockets...I was pick-pocketed twice within 30 minutes that night! It's not my first rodeo...they got nothing because I had nothing of value in the places they got to, and caught one by the wrist and gave him a good yelling at and a shove...but first time (and SECOND time!) I've ever been pick-pocketed during many trips abroad.