Thanks Richie for all the led help! I'll definitely be testing out my lighting options, especially since the lighting is so integral to the TRON theme.
To clarify, I will not be lighitng the U shape as you have shown in your illustration. I'll be lighting the center rib piece that U shape goes around. See this reference pic from the lightcycle:
I had the center rib cut from transparent blue acrylic, so it will already have a blue tint to it. I'll try some different colors, but it should yield a good bluish glow using some white, or even uv leds.
Your suggestions still have merit though, regardless of which piece I'll be illuminating, so I appreciate the advice.