I got to the polls 15 minutes after they opened, the line was out the door to just past the "no electioneering beyond this point" markers. Kerry/democrat folks were out handing out last minute "visual reminders"; about 10 minutes after I arrived, the Bush/Cheney/Pipkin/Floyd table went up.
Folks in line were good-natured and avoided discussing any particular candidates or issues -- most were reminiscing on how this was the busiest they've ever seen it at the polls. Inside the building, we were split up into four lines (A-D, E-K, L-R, S-Z) -- by some statistical blip, only the middle lines were long... while I was waiting (and waiting) in my line, they were going out to the hall and outside to pull in A-D and S-Z voters.
I'm assuming there are quite a few independent or third-party registrants, as I was R-11 at my check-in, and a sneak peek at the sheets showed only 18 democrats.
The whole process took about 50 minutes.
I got to my poll in NW Illinois at 8:20 AM and was in my car by 8:30. The line of people was flowing nicely. Several people coming as the same amount was leaving.
From my perspective the turnout is about average for a Presidential election.