
tsien.com
BoardMaker3BoardMaker3 is an integrated environment for the design of Printed circuit boards, offering a comprehensive set of tools that allow schematic entry, Spice simulation, 3D viewing and an Autorouter Interface. With a Customised graphics engine and a user configureable interface it allows complete control of workflow. Putting it simply - one of the most powerful and productive CAD tools on the market. Fully integrated schematic capture and PCB editors, update diagrams with a single keystroke.
http://www.tsien.com/