I got back from my trip to Japan last Friday (July 29). Other than Dragon Quest, this trip I went to Shikoku, Kyushuu (Checked out Haus Ten Bosch), Osaka (Universal Studios Japan), and Tokyo (Disneysea, original Yoshinoya). Obviously though, the thing people on this site are probably the most interested in though was the Dragon Quest Spectacular Tour and the Dragon Quest Museum.
While both debuted on the same day, I went to the show first (July 22, opening night) and the museum on the 23rd.
The Spectacle Show started out in Saitama, which is about a one hour train trip from Tokyo.