Doh. This is probably too late, but there are some Director's Editions effects that escaped my first viewing.

00:20:22- The Enterprise's reflection during the tour of the Enterprise. There was no reflection in the previous versions.

00:21:21 - 00:21:28- Ok, this one is tricky, but it is a visual effects change. During the pan-down shot of the Enterprise, take note of the back end of the Travel Pod as it turns the oher direction. The Director's Edition of the effects are very smooth while the other editions have a very awkward looking 'black flapping' like effect behind the shuttle pod.

00:40:42- The Earth that is seen on the viewing screen in the "Departure Angle" shot is a new Director's Edition effect shot. The Earth from all other versions are pretty static and moves away at a much faster speed.

I'll keep in touch.