Arduino Microcontroller Kits

Are you interested in embedded programming or microcontrollers? I have recently been looking into purchasing an Arduino Duemilanove to experiment with some physical computing. The Arduino is:

an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.

 Using one of these kits from Little Bird Electronics or Toysdownunder it is possible to easily build systems that interact with their environment.

Little Bird Electronics
Arduino Inventors Kit
Arduino Starter Kit

Toysdownunder
Arduino Inventors Kit
Arduino Starter Kit
These kits include everything you need to start building with Arduino. They include the microcontroller board, sensors and wiring to connect it all together. The Inventors Kit also includes a printed book describing simple designs and the code to get you started.

My plan is to purchase one of these kits and do some building. Ultimately, I have some ideas for a large project that will use the Arduino along with some of the other sensors available.