I recently finished a success novel, "Acres of Diamonds" written by Russell H. Conwell in 1915 and he had visions of a woman becoming president and hoped he lived long enough to see his vision become a reality. He died in 1925.
Well, it is now 2004 and yet the closest we ever came to a woman in the White House (other than the First Lady) was Walter Mondale's choice for his Vice-President, Geraldine and they won one state in the entire election. Bad year for Democrats! Republican Senator Dole's wife, Elizabeth ran in Election 2000, but had to drop out for lack of funds and her opponents, Bush and John McCain, were leading the race for a short time until it narrowed down to Bush.
IMO, I think we will cross the bridge of having a black president before we elect a female president. Now if Condi Rice would run in 2008, we could cross two bridges simultaneously!

In all seriousness, I believe the absence of females running for Election 2004 is that a sitting president is
usually difficult to beat. Hillary is too smart to run only to lose. But, just wait until Election 2008...no matter who runs, I am willing to bet my money and take the winnings to the bank that Hillary will run for president.