Here's a summary of today's tracking polls, in the order they were released. Very tough to divine any sort of real movement. Note that the Diageo/Hotline poll pushed leaners, which drove up the numbers for both candidates but did not change the day to day spread which stayed at Obama +7:

Zogby: Obama 49 (-1), McCain 44 (+1)
Rasmussen: Obama 51 (nc), McCain 46 (-1)
Diageo/Hotline: Obama 51 (+3) , McCain 44 (+3)
Gallup (Traditional LV): Obama 52 (+1), McCain 42 (-1)
Gallup (Expanded LV): Obama 52 (nc), McCain 42 (-1)
IBD/TIPP: Obama 48 (nc), McCain 43 (-1)
Washington Post: Obama 53 (nc), McCain 44 (nc)

Overall, Obama leads in the RCP National Average by 6.6%.