While I think the latest version of Lonely Planet Venezuela (2010) is slightly paranoid about crime (e.g. Caracas: Dangers and Annoyances, p56-57), the "Behind the Scenes" section rightfully extends a "huge thank you to Ben Rodriquez of Osprey Expeditions and his team in Caracas for all the help, advice, logistical support and general assistance given over my entire time in Venezuela - I couldn't have done it without you."
My girlfriend and I visited to Venezuela this past month (August 2012) and we are so thankful for the help of Ben Rodriguez, and the rest of his staff at Osprey Expeditions. Traveling to Venezuela is difficult because any advance reservations you make will be charged at the official rate $1 to 4.3Bs but you can change dollars unofficially once you are in Venezuela for $1 to 9Bs (at the time of this writing). So in order to save money, we didn't make any advance reservations and hoped that we could accomplish everything on the ground once we were there. We planned to visit Angel Falls/Canaima, Parque Nacional Morrocoy, Los Roques (and unavoidably, Caracas). We first negotiated getting to Morrocoy on our own by bus but there were no travel agencies in Chichiriviche so three days into our trip, we still didn't have plane tickets or lodging for Canaima or Los Roques. We got back to Caracas in the early afternoon, found Osprey Expeditions offices (in Sabana Grande) and were able to get our flights and lodging to Canaima for a flight out that evening. There are no good direct flight routes to Canaima but Ben was able to arrange flights for that evening to Puerto Ordaz, with a connecting flight to Canaima in the morning. However, our 8pm flight was delayed until 1am. I expected to just wait in the Puerto Ordaz airport overnight but Ben's team was still waiting for us in Puerto Ordaz and took us to one of their homes just so we could get some quick rest for the morning's flight. The host's mother even got up as some god-forsaken hour in the morning and cooked us breakfast. The price of the whole package to and from Angel Falls was less than the other four travel agencies we looked at and I can't believe any of them would have provided the service that Osprey did. Ben was literally still coordinating our arrival by the time our plane left in them middle of the night.
We were also able to arrange flights to Los Roques with Ben while we were en route to Canaima. We checked all the airlines at the airport before and Ben somehow was able to get us flights that we had been told did not have availability. I want to stress that this was all during high season, so the man and his team are truly miraculous.
I often read LP forums but don't regularly contribute advice back in return but I do so now because Osprey was so instrumental in allowing us to see all the places that we hoped to visit in Venezuela at the right times