Get up to three of these USB development sticks with TI's MSP430 microcontroller on board for absolutely nothing! Use coupon code EZFREE2013. Great if you've been wanting to get into this sort of thing.
Credit to: http://www.eevblog.com/forum/index.php?topic=2119.0
The eZ430-F2013 is a powerful development tool that provides both the USB based programmer and F2013 development board in a small USB stick package. The flash memory can be erased and programmed in seconds with only a few keystrokes, and since the MSP430 flash is extremely low power, no external power supply is required. The tool has an integrated software environment and connects directly to the USB port of a PC which greatly simplifies the set-up and use of the tool. The flash development tool supports development with the MSP430F20xx devices.