No doubt he'd fit in with this team; Braves who know him will tell you that enthusiastically. And he finished fifth in the MVP voting just two years ago...
...However, despite not playing the outfield in three years, I'm told that some scouts and team officials believe he could (I really don't know if any Braves officials are among that group).
Then there's the money. No small matter when it comes to Berkman. I really don't think the Braves would pay him more than $7 million for the rest of this season (including his buyout for 2011) unless they dumped another salary or the 'Stros picked up a good chunk of what he's owed.