I look at tons of polls, and the first thing I do after seeing the results is look at the party breakdown. If it's insane--like the one with Obama up NINE that was some ridiculous number like 53-Dems, 29-Reps--I just move on.
Look for example, Georgia, which is as red as they get, but which RealClearPolitics calls "leaning" McCain.
The most recent poll there is Insider Advantage, which gives McCain as up by merely 3:
© InsiderAdvantage/Poll Position 2008 InsiderAdvantage/Poll Position polls are conducted by telephone with registered voters. Like all other major polling firms, data are weighted by age, race, gender and political party affiliation.
The weightings are NOT LISTED.
You can find the same almost everywhere, no matter where you go.
Cheers!