Anecdotal evidence (and media reports) when I lived in Miami-Dade, where I lived in 2000, showed that black turnout was VERY high. I know that our local candidate for State's Attorney, Al Millian, was winning the election until these huge vote totals came in from the northern part of the county (heavily black) and the Beach (heavily Jewish and Gay).
Perhaps unfortunately, anecdotal evidence doesn't fly in the face of record facts. It could well be true that minority precincts made the difference in a number of races. You can lose a precinct 990-10, and it really hurts, but if there are 2000 registered voters, it's still only a 50% turnout.
You can go to Florida state and county web sites, and see the precinct-by-precinct turnout figures. Florida also published the figures for turnout by race and party, and showed the results I indicated.
It doesn't mean that there were not a LOT of minority votes, and that they were unfavorable, just that the proportionate turnout was not unusual.