One For Your Technology Staff: Fritzing [PCB Circuits]
Note: Fritzing is still under development. However I have shown it to one of our Techology teachers and he seems very interested.
From the website:
Fritzing is an open-source initiative to support designers, artists, researchers and hobbyists to take the step from physical prototyping to actual product. We are creating this software in the spirit of Processing and Arduino, developing a tool that allows users to document their Arduino and other electronic-based prototypes, share them with others, teach electronics in a classroom, and to create a pcb layout for manufacturing.