I created the first version too when I was studying at Visual Effects at Vanarts in Vancouver, I received good review of this script,thanks to Highend3d(Now Creative Heads) that I kept on getting update and reviews.
So I wrote this script, today I am releasing updated version with a new feature added.
Download Version 1.1.0
if pressed alt , the new camera is Frame to Selected modal panel,
if pressed Ctrl, the you see through newly created camera
if pressed Ctrl+Alt you see through newly created camera & Attribute additor is displayed (only choose this option Attribute Editor is not open or else script will hide it.)
Please write your comments and provide any suggestion, I would love to hear from you.