For those with access to HD (or standard definition for that matter, it should be cool either way), you might want to keep your eye out for
this. A nature series that utilized major advances in strategies to stay as far away from the animals as possible. Night vision lights of wavelengths outside of the visible range so they have the most naturalistic night film likely ever shot (including nocturnal hunting). Super high powered zooms to allow use of helicopters at high enough altitudes to not disturb the animals. And the fastest high speed cameras (by double the frame rate) to capture a Great White attack. All recorded in HD.
I'll be watching.