I think what jammin is saying (I'm probably wrong; I'm surely he'll correct me if I am) is that God doesn't manipulate the laws of physics, He just manipulates matter so that it does what He wants within the laws of physics. So for instance, nothing can defy gravity, so if God wanted to make someone fly, He couldn't ignore the law of gravity, He would just have to make them temporarily lighter than air. Then they would float, and it would be in accordance with the law of gravity.
(If I am wrong, jammindude, sorry. Again, just trying to understand your perspective.)