Schematic/PCB Design for Linux?

VanessaDannenberg asks: "Occasionally, I have been known to design the occasional circuit board. I've been using Eagle, but with the board size limit of 3x4 inches in the free version, and a $400 price tag to exceed this limit, it is time to consider a Free Open Source Software alternative. Not being a Linux programmer myself, I have checked into and ruled out gEDA, KiCAD, Electric, XCircuit, and a host of others as being too incomplete to replace Eagle. My requirements are pretty basic: Draw a schematic, make a board out of it, edit and autoroute it, export to Gerber, and do it all natively within Linux. So, with this in mind, what suggestions do you folks have?"