80 watts total seems a little dim to me, too. 200 watts might be a little much. I would use a dimmer.
I do agree with the 4 foot track. Track lights are ugly and detract from the over-all appearance. Shorter is better.
Aim the first and third lights (from the left) left, and the second and fourth, right. It should even out the spread and create interesting shadows.
In my opinion, keep the lighting angle about 45 degrees. Long shadows look silly and lack of a shadow defeats the purpose of the raised lettering.
The other possibility, with shadows, is to make them a strong part of the display. I can't visualize that with track lighting.
I agree with Trumpy on hologen lights. They are a different color and stand out from general office lighting.
