No major polls will reflect the impact of the tape until election day. You can always look at tracking polls, but in my opinion tracking polls are unreliable for the short amount of time we are looking at.
There will be more to this story within the next couple of days. We will have to wait and see how things develop.
I was looking more along the lines that some of the pollsters might jump out and go after a group leaners or undecides (if there is just a thing at this date) and focus on this new tape and if its having an impact...or even those that aren't planning to vote...its probably a larger group to go after than the undecided.