Camera Tools request

[JClements]

I was wondering about a set of camera "tools" which the user could use in conjuction the arrow-keys, pageup, pagedown, etc., or with a UI with buttons to manipulate the camera in a manner very similar to what can be done in Google Earth.

Setting up key scenes to provide different views such that they animate smoothly I find just about imposssible with the mouse. I realize there a some scripts envolving cameras to paths, but at times that can be overkill and can require some fiddling.

Functions I am looking for are:
-Ability to preset distance and rotation values to be used for "panning" the camera or rotating the camera about focal point.
-Abiltiy to center-a-selection horizontally and center-a-selection vertically to the screen.
-Ability to insert scenes between two existing scenes so they transistion smoothly (for example, if 3 scenes are inserted then the differences in the camera-to-focal point parameters of the two existing scenes would be "divided" up by a third and applied to the new scenes).
-Possibly a UI which would also give the user instaneous feedback (eyelevel, field of view, distance of camera to object, etc.) for the current scene and immediately after the view has changed.