jpmassar points out this article, in which we learn that Obama plays poker, which McCain plays craps.

The article interviews Andy Bloch and Doyle Brunson:

Mr Brunson, twice world champion, said he could not back Senator McCain because the Republicans supported the American ban on internet gambling. Senator Obama has said he would like to regulate online poker and gambling, rather than criminalise it.

"Poker players have to support Obama," Mr Brunson said. "God help the internet gambling business if McCain does happen to win."

I'm not necessarily sure that I'm quite ready to pick my president based on their gambling habits... but damn, I'd much rather have a good poker player than any kind of craps player.