Usuful Maya plug-in or assets related to camera

I surfed creative crash to search a plug-in I need and found bunch of useful plug-ins I would like share.

http://www.creativecrash.com/maya/script/playback-multiple-cameras-for-animation

http://www.creativecrash.com/maya/downloads/scene-files/c/camera-shake-3d

http://www.creativecrash.com/maya/script/arc-tracker

http://www.creativecrash.com/maya/downloads/shaders/c/friendly-depth-by-lewis-young

http://www.creativecrash.com/maya/plugin/sanctusmatchcamera

http://www.creativecrash.com/maya/downloads/character-rigs/c/cammy

http://www.creativecrash.com/maya/downloads/character-rigs/c/layout-camera-rig


I haven't used these plug-ins and cameras yet, but look like very fun elements to play with :D