i like where you're going with #96. if we're going to use 5 of the colors you should add yellow too. you could also vary the thickness along the line itself. another thought is to stack the font and place the lines below the font spanning the length of the font. for further inspiration check out the at&t and minolta logos ... they're a bit more dynamic/dimensional...could help to inspire other ideas for you.
i really like #89 but there's disagreement on this end. could you somehow add yellow and green to that option? maybe add inverted triangles to the tips of the logo finishing off the red,orange, yellow side and the purple, blue, green side.
thanks!