Maltannon posted a new video tutorial and a script for sale, Simple Camera Rig:
"If you ever struggled with your After Effects 3D camera than this tutorial is for you. Learn to rig your camera in seconds."
See also previous AEP posts AE Camera Basics (a brief roundup) and Pixel-Perfect Camera Moves.
Update: see also a Hypoly script via The Motion Exchange, AE Script: Simple Camera Rig - Updated.