Sometimes semplicity means really power. A simple and fast solution to create an EagleCad pcb to be milled by a milling machine can be realized directly with an eagle script. Download the gcode-1.ulp from Cadsoft, unzip and insert it as usual in ulp directory and run it after you have realized the board. Set the parameters according to your machine.
The new release of pcb-gcode.ulp for Eagle Cad normally used to create pcbs (ver. 3.6.0.4), downloadable from cadsoft website, doesn't offer more functionalities of the previous versions but it is certainly clearer. This version is characterized by a new visual interface and a preview of the tracks to be milled.
To realize a test we have quickly created a sample pcb (a very simple circuit using a 5V regulator):