ESPN.com: Phillies internally considered trading Ryan Howard for Albert Pujols
Not believable, for several reasons. One, Ruben Amaro denies the assertion, right there in the story, and calls it a "lie." Two, it would make no sense- the only reason to trade Howard is if you can't afford him, and Pujols is even more expensive. And three, it just doesn't make sense for either team. The Cardinals like having Pujols, and the Phillies like having Howard.
It's not going to happen, period. But I'm sure it'll still be Topic A on sports talk all week.