Here are the instructions
for the lightcycle mentioned above. Bion Cad has been working on a cycle
as well that is fig scale and molded through Shapeways. It currently is not for sale but keep an eye out for it (I am too).
As for discs, I think I can help you with that one as I have made afew
myself. The easiest solution is using a Clikit bead
. They come in several colors, all of which are all Tron circuitry colors. Another solution is modifying a Lego round plate (removing the stud) and modifying a black BF neck armor piece and fit the two together (it is the disc on the left in the photo) or modify a BF gladiator mask (partially the trans blue one) so it is just circuler and using a black round plate and modifying the bottom of it so it is flat. The stud fits right in. Looks like this
As for armor/suits, it is entriely up to you on how you do it. The best way is using decals or painting the circuitry right on. My way of doing this was modifying existing Lego torsos to fit.
Any other questions just ask away. :P