Not just corks and Port, but excellent wine comes from Portugal.
I recently met an excellent crew of people in Portugal, where we began a few meals in Porto with Encruzado white wine. Encruzado is a grape, primarily grown in Dão, with a taste that can be sharp or buttery and is excellent with seafood.
Colares wines are also an exploration. This relatively recent article written by Eric Asimov does a better job explaining than I can.
Acidic Vinho Verde from the northwest of Portugal is also a must have.
Corks or screw caps? Your choice, but information about corks interested quite a few readers in a Forbes piece I wrote yesterday (other recent articles include the mother/daughter team running Château Margaux and a Hong Kong stopover for entrants of a grueling round the planet sailing race – the Volvo Ocean Race).
In addition to what I wrote in that piece on corks, Jo Mills of Rippon Wines sent me this information via email. Rippon is located at a stunningly gorgeous patch of land in New Zealand, and the wines they produce are biodynamic. The family also spends part of the year in France.