Check out the blog for in-depth instructions.
http://www.indymogul.com/post/1074/build-plans-how-to-make-a-robot-suit
Robots are cool. Using only a football toy chest, trash can, old video editing controller, blue flash controllers, and some air vents, Erik and his dad construct a super-strong and smart robot big brother.
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LOL
Shotgun microphones are notoriously expensive. The Sennheiser MKH418S I purchased was over $1,500...but that is on a Panasonic AJ-SDX900 camera which cost me $54,000 -- so I don't feel too bad. (yes I do professional video work).