This is McCain's last chance to connect with voters in a substantial way. I expect him to pull out all the stops. If he has an October surprise or a new gotcha- or a trap for Obama it will be sprung today.

Obama will try and stay flexible. He wants McCain to be desperately flailing around so he can appear sanguine and statesman like.

I expect the term "Maverick" will not be uttered - (if it is, then chug-a-lug)

The debate starts at 9PM Eastern time. For the past two debates I've found the cleanest video feed to be from the NYTimes front page. MSNBC is not bad either. CNN is a bit cluttered with their instant poll graphics.