There are several current tourist guides to this area of which the best is the Nelles Guide Croatia Adriatic Coast . There are several out of date but still excellent travel books which cover the history of the region and can be found in second hand book stores. Probably the best is Yugoslav Coast by Lovett Edwards as well as Rebecca West's famous travelogue Black Lamb and Grey Falcon which is now available again in paperback. Several travel firms offer good value packages to the area - flying to Split or Dubrovnik. We used Transun whom I would happily recommend.
Car hire is reasonable and petrol is the cheapest in Europe.
The same goes for food and drink, entrance charges etc. The downside is that the main coast road is very slow with virtually no dual carriageway. Which makes finding what you are looking for interesting but time consuming. Copyright 2000 Balkan Military History.