In Tokyo these days, it's 1989 all over again. The city's real estate market is healthy once more. Down the street from the chic office/shopping/residential complex of Roppongi Hills, a sweeping new glass-and-steel national art museum has just opened, with galleries the size of aircraft hangars. Massiveand massively expensiveHummer suvs squeeze through the city's capillary-sized streets, ferrying the wealthy to new clubs and bars like Roppongi's Crystal Lounge, which features crystal-encrusted replicas of Michelangelo's
David
and the
Venus de Milo
. Corporate Japan's balance sheet has never been stronger, led by Toyota, which just reported a record $3.5 billion profit for the...