my wife and i are planning a trip to costa rica for 11 nights beginning 1/15/10, arriving at SJO airport. i'm having a hard time deciding what region of the country we'd like to visit (Guanacaste, etc?). we'd for sure like to spend a couple of nights at Arenal (perhaps at the beginning of the trip?). any suggestions on where else to visit? like most people, we're looking for a mixture of relaxing by the beach/pool as well as some adventerous activities. any input would be GREAT, including specific hotel recommendations, etc. thanks!