In January 2002 I was doing research for our upcoming trip to Portugal with the Nordholms. I came across the very interesting site of Lou and Joan Rose. Joan is an art critic and Lou is an economics professor at the U of Hawaii (He is also a ChemE, a fact their website curiously omits!). They retired in 1999, sold all their stuff, and have been traveling the world since.
I have been fortunate enough to have had an occasional ongoing email discussion with them since. They are currently (7/05) in Africa. Check out their website.