Pollster.com probably has the best summarised graphical and tabular presentations of sophisticated statistical trends based on all polls (rather than the simplistic arithmetic averages of cherry picked polls for cherry picked periods as on Real Clear Politics).

As can be seen from the above, there is a distinct pro-McCain trend at the national level over the past week, but this has yet to impact on Obama's 200 EV lead in the electoral college.  Indeed only Ohio, (Joe the Plumber's home state) of the toss-up states is looking any way dodgy for Obama at the moment, based on current trends.

I'm not arguing for complacency - but neither is there a need to panic.  Indeed, if any side is panicking at the moment, it looks like McCain.

Vote McCain for war without gain