I can't see the Nationals maintaining their pace after the All-Star break. I just can't. Streaks are a dime-a-dozen in baseball, so naturally what goes up must come down.
The Braves seem a little lost, what with the Bad News Bears in their outfield (how many rookies do they have on the field now?), but I still think they can claim the division because the Nats will fold by August and the Mets are nothin' special right now.
I had hopes that the Dodgers might make a play for the West, but they're collapsing under their own expectations from the first of the season. I think it's gonna come down to the Padres vs. the Giants, which could go San Fran's way with a "steroid-free" Bonds back in the game.
I'm willing to spot you the Astros making a play for Central, but never forget the Cardinals. I may not buy into the notion of Tony LaRussa as "uber-manager" (I'm sorry, how many rings does he have?), but the Cards still have the odds in their favor. The Cubs might make a threat, but I'd expect them to get closer to the wild card than the division lead.
God, I love talking baseball...