I'm looking to go down to costa rica for a month (or more maybe). I'll probably split my time between tamarindo and hermosa. Anybody got a good idea on how much I should plan on saving? Also I'm 19 and you have to be 21 in costa rica to rent a car, so am I totally screwed in that respect? It would suck to be their so long and not have that kind of mobility. Any special advice for someone looking for more than just a week long getaway?