Arduino Due TLC5940 Library
Information and Download: Google Code Archive - Long-term storage for Google Code Project Hosting.
The Arduino Due uses an ARM Cortex M3 processor made by Atmel (SAM3X8E). This microcontroller is fairly different from the normal AVR microcontrollers used for most Arduinos. Alex Leone made an Arduino library for handling Texas Instrument's TLC5940 16 Channel LED PWM driver with the AVR microcontrollers (Google Code Archive - Long-term storage for Google Code Project Hosting.).
However, running the TLC5940 well requires delving into lower-level parts of the hardware -- things like timer counters and interrupts -- and these are different on the Due/SAM3X8E. I've started a TLC5940 library that makes use of the features offered by the SAM3X8E. At least for now, this library doesn't offer all the fancy features that Alex Leone's library (e.g. animations, fades, PROGMEM storage, etc.) because I didn't need those features. I have my own libraries for describing and running lightshows.
Hopefully some will find this useful. 
- Madeline