Steve,
I went with Amazon Tours and they seemed to do a very good job handling everything. We were on the Rio Negro River. For our trip we felt the fishing was good but according to the guides and the other people on the boat the fishing was off due to the unusually high water last year. We caught about 10 – 15 fish a day per boat, (2 guys and a guide who doesn’t fish) with one each day over 10lbs. We were plenty fine with that since I don’t know if I have the arm strength to fight 20 fish a day by myself. They take everything out of you, it is just great!
First trip???? Feel free to pm me for more information, I would encourage any bass fisherman that is serious about the best fresh water fight in the world to pack his bags!