My wife and I are traveling to South America in September 2006. We are not limited in time or destinations. As part of our trip we certainly want to explore part(s) of the Amazon. Most posts are by country, i.e. from Peru, or from Brazil, or from Ecuador. Are there great differences between the Amazon experiences of one location over another? Is any one area recommended as the best? Is there enough difference to warrant visiting from mulitple locations? Should we take a boat cruise from Manaus, or a lodge visit in Peru or Ecuador? Any suggestions, recommendations, comments would be greatly appreciated.