I haven't linked to many polls, because I think many are propaganda tools, but as we get closer to Election Day, if you need any encouragement, here is a poll taken by IBD. (IBD had the most accurate polling in 2004.)
IBDeditorials.com: Editorials, Political Cartoons, and Polls from Investor's Business Daily: "Day 21: IBD/TIPP Tracking Poll
The race tightened again Sunday as independents who'd been leaning to Obama shifted to McCain to leave that key group a toss-up. McCain also pulled even in the Midwest, moved back into the lead with men, padded his gains among Protestants and Catholics, and is favored for the first time by high school graduates."