Here are photos of my 2011 Halloween costume as Sam Flynn from TRON Legacy.  I basically used an old neopreen wetsuit and a thin nylon wetsuit as the base for the light suit.  I added white shower curtain liner to create the white spots on the suit and finally added blue EL wire to the entire costume.  It was powered on 3 EL converters.  The disc was a novelty item purchased online for the costume.