Per the National Exit polls, 18-29's made up 17% of the vote. That's pretty good, but not spectacular. If the raw data is accurate (women 54% of the vote, Kerry winning by 9%, Bush men by 6%) Kerry will win the national vote by between 2-3%.
In Ohio, Kerry leands 51-49 among men, 53-47 among women. If accurate, Kerry should win by 4+ points, a margin very unlikely to be overturned by inaccuracies. Florida out in five minutes...