My intentions with this Instructable are more along the idea of giving other people a project idea, not so much laying out how exactly to do it, so bear with me, please =D
All credit goes to britknight for the idea (http://www.instructables.com/id/Wiichuck-Controlled-Turret/#step1).
I saw yours, was inspired, and thought I'd share what I did!
NOTE: I didn't have much time to put this Instructable together, and I won't have access to a computer until July 2015, so if you post questions, just know I won't be able to answer. =)
Step 1: Materials
Three hobby servos (all continuous rotation - any brand)
10 x 10" plexiglass sheet
One 12 x 8" Lexan sheet
About 2' of 1 x 1 x 1/16" Aluminum L-Bracket
About 1' of 3/4" x 3/4" x 1/16" Aluminum L-Bracket
A bunch of 6-32 size cap head screws and nuts
An Arduino Uno R3
A half size solderless breadboard and jumpers
A Wii Nunchuck
A WiiChuck adapter
A 6V power source (I use a 4 AA battery pack)
Really, get creative with materials! I was using scraps from the high school robotics workshop I mentor at, so there is definitely room for improvement on the materials side of things!