I feel I am being a little risky with Florida, and North Carolina. Most polling data shoves Obama with a slight lead in Florida. From my limited research however, I've noticed there are many unaffiliated voters, who I think could break for mccain in these states.
Some polls have suggested that unaffiliated voters will break for obama, but no such polls have said so for north carolina and florida.
I believe Florida and north carolina are sucestable to the bradley effect and that the youth vote may not turn out. I think obama could be over inflated in these states, though I admit that I am going out on a limb here.
That's all the explaination for now.