I've booked a 2-night Amazon cruise from Manaus, July 21-23. Looking for a single female to share a cabin, to avoid the single supplement. Cost is $650 on the Clipper - airconditioned ensuite cabin. You can read about the boat and the cruise here: http://www.rainforestcruises.com/clipper-amazon-cruise/ (if the mods allow it :-)) Otherwise PM me for details.
Also someone to go sightseeing with in Salvador July 24-28 and Minas Gerais July 28 - Aug 4. PM me if you're interested