You should get pesos at the airport-either through an ATM or money change. Casual dress. Go to both Punta Mita and Bucerias for day trips. The restaurant is good. The beach is beautiful, long-about 4 kilometres, the waves can get big. It is easy to get a taxi from the airport.
http://www.ranchobanderas.com/main.htm
http://www.hwforums.com/2031/messages/1491.html