It isn't perfect, but I've found a good travel map of Iceland at the library.  I have scanned the Eastern portion which shows Breiðdalur, Fljotsdalur, and Jökuldalur, and the teeny place called Brú.  A second portion shows a little farther north and west and includes Laxardalur.  I've saved these in PDF format because the zoom feature is really handy to use.  If anyone wants me to send the files (pretty large, scanned at 150 dpi for detail) send your email address to llawryf @ earthlink.net
 
Laurel