My husband and I have 3.5 months to spend visiting SA, where to start and where to end? Wanting to get in a tour of the Galapagos, visit Ecudor, Peru (Macchu Pichu), Bolivia, Paraguay, Buenos Aires, Brazil and get down to Patagonia. Any tips and inisght would be greatly appreciated. Travelling begins at end of Dec 2012, yet to book, it seems cheapest way to get there is to fly into Buenos Aires?? Love to hear your thoughts.