We aren't gonna find Bin Laden easy. Its like Vietnam, or Afghanistan for Russia. Its hard to find one man with a big army. Its hard to control. Not maneuverable.
George Bush's death wouldn't stop anything, but start another big terror controversy.
All the Middle East isn't on OBL's side. Only the countries that are Muslim in gov't (like, not Israel, not Turkey, etc.). And only a portion of those.