I really don't believe Houston is that great of a team. They were lucky to catch the Cards at a time when they were down. But I do have to give them credit for turning their season around after being 15-30 at one point in late May. Only the 1914 Boston Braves did that previously.
Point is, that if Chicago plays like it did in the DS and ALCS, then it's over now. As formiddable as Clemens, Oswalt, and Pettite might be, they all have games in which they aren't perfect and the Sox have a line-up that will make them pay. Another thing the White Sox have going for them is home field advantage... not just beacause it gives them an extra home game, but because Minute Maid Park has those Crawford Boxes just 315 feet away from home plate.
Series prediction: White Sox 4-1