OK, so much for my criteria... ;\)

We did some looking and my wife ran into some trips to Peru. Hiking Machu Picchu seems WAY too cool not to consider, granted travel is about 11 hours.

Has anyone done this before? Looking for some tips.

We are looking at this so far. Waiting to hear back from them.

http://greentracks.com/Amazon-start.html

They also have an Amazon lodge tour where you travel from lodge to lodge in the rain forest.