i will be flying to madrid in early april,followed by lisbon,nice,barcelona then back to madrid, total of 17days. not including hostels,flight or rail pass,i have bugeted between $1300-1800usd for trip.Is that enough? any thoughts? im going to take an attitude of adventure and whatever interest me ill stop and explore,but i need some help on w/rail pass or train tickets? and a rough daily budget on these ciies or suggestions on other close must see sites,differant path ? thanks for the info