Toured Iguacu falls with Iguacu Falls Tours. We did Argentina, Brazil and Paraquay. It was an awesome trip. Edson and Gu (sp) were super friendly and knowledgeable. I would highly recommend these guys if you are planning a trip to Iguacu Falls.
We are posting some information and tips for Iguazu Falls in Argentina and Iguassu Falls Brazil. Working on it!