The thing that struck me is that no matter how often I watch games played in Houston, I always underestimate just how strangely that park is shaped. 435' in center and only 315' down the left field line? It's not quite The Polo Grounds, but it's still pretty messed up (and don't even get me started on the hill and the flag pole).
Anyway, it turns out that what I expected is true: Berkman hits better at Minute Maid than he does at Busch. In Berkman's career in games at Minute Maid, these were his numbers: .976 OPS .327 BABIP 105 tOPS+. And in contrast, his career at (new) Busch looked like this: .932 OPS .286 BABIP 94 tOPS+.
Now, Berkman has only played 28 games in St. Louis since the new stadium opened in 2006, and it's dangerous to draw conclusions from a small sample. But, I'm worried about him losing his power to left in a bigger stadium (Bill James predicts him to slug .486 this season, which is down from his career average of .530), and I don't think his legs are young enough for him to turn those gappers into many doubles or triples.