There was another thread recently about Peru.
http://forum.calgarypuck.com/showthr...ighlight=nazca
http://forum.calgarypuck.com/showthr...ighlight=nazca
I would recommend:
Cuzco - Macchu Picchu
Puno - Lake Titicaca - Copa Cabana Bolivia
Arequipa
Nazca
Lima (one day, and then you will want to leave)
Amazon