Good advice here already. It's been about 8 years since I went to PV so some of the following may be outdated, I don't know if you are staying in PV at all so this may not be helpful. When you land there will be a dozen taxi/limo drivers waiting as soon as you clear the gate, your first instinct is "Taxi, gotta get one", walk past them as there are others more reasonable outside, we had a large group some took the first bunch and some took the latter, the latter got off cheaper and arrived at or resort faster (one of the groups ended up at a shopping area on the way not by their choice either). PV was a wonderful place to visit, people were very friendly, US currency is accepted there, but it was easier to negotiate with pesos, we learned this only on the last two days of our trip. There was a bar on the beach called 'Daiquiri Dicks' (it is the opposite direction of where are headed though) one of the best Mojitos (I know its Mexico) i have ever had, we were drinking them by the pitcher. I don't know if tequila is your thing, but I would definitely visit a tequila 'factory' if you can, I wasn't a huge tequila fan at the time, but I can say this sparked my quest for better tequila in the US. I think some even offer to ship, not sure of the legality of that though.
Hopefully we get a full TR from you. We are planning on going back to puerto Vallarta and Nuevo Vallarta next August.
ETA: Fresh Guac too
(me in Mexico)
