Obama will make no tangible difference, at least not in foreign affairs. Everything he's said and not said suggest that not only will he perpetuate Bush's failed policies, he will go some way to entrenching them. This is precisely what the israel lobby wants, they know the world is going through this illusory phase where having an African American in office might somehow come to be seen by naieve apolitical people as the harbinger of a new age in foreign diplomacy. Just look at the appointments he's made and what they've said and that should be enough to bring any so called "obamamaniac" down to earth.
Truth is we're choosing to turn a blind eye to what we know, this is not change, it's the same american neo-imperialist, pro-zionist wolf in a different sheep's clothing.