EAGLE offers user-friendly, flexible and affordable solutions for PCB design, including three modules embedded in a single interface: Schematic Capture, Board Layout and Autorouter, which means you don't have to convert netlists between schematics and layouts.
New and Improved CadSoft EAGLE v6.4 offers:
One-click simulation and modelling of your PCB in LTC Spice
Better interoperability with other PCB design software and file formats
UI improvements to make the software easier to use and drive productivity
CadSoft EAGLE V6 introduces a new XML database structure that you can easily import or
export data files to and from other CAD programs.
Three modules embedded in a single user interface: Schematic Capture, Board Layout and Autorouter