So I got this C2000 LED Experimenter's Kit from my Texas Instruments representative. I have it setup on one of the PCs running the color light demo. Everyone feel free to mess with it, the documentation is in the box next to the PC. The kit itself supplies a license for developing on the kit via the USB. The kit includes a Piccolo microcontroller which has dsp functionality. This may be a useful platform for the sign contol, and they have reference circuits for powering the LEDs.