[Hehe]

If you are into snowboarding/ski, definitely hit up Bariloche or Mendoza (Argentina) for some very fine powders as you will be there in their winter time.

My suggestion for a trip that goes from Arg-->Chile-->Brazil: Buenos Aires-->Calafate (for Perito Moreno Glacier)-->Bariloche (for sightseeing and snowboard while you are there. The landscape is breathtaking even if you are not skiing)-->Puerto Montt (for incredibly cheap sea food)--> Santiago-->back to Arg via "Tren a las Nubes"-->Iguazu Fall-->Brazil (not sure what's good in Brazil around winter time... you probably want to look it up before deciding whether to go to Brazil or not)