Review (Summary): "Although the many of the additions to the D300S are simply those that we've seen appear on Nikons since the D300 arrived (virtual horizon from the D3, movies from the D90), one genuinely new feature is the inclusion of contrast-detection autofocus that operates while in movie mode ...
The D300S is not the standout product that its predecessor was and unless you find your clients are clamoring for video footage, we can't see much need for existing owners to upgrade. But that shouldn't take away from an absolutely excellent product ..."