Craft Robo Cutter - Graphtec CC220-20
The official software is Silhouette Studio from http://www.silhouetteamerica.com/software however you have to pay for SVG support, and it does not support Linux.
Or you can use one of the following alternatives, which are all free, open source, cross-platform and support SVG. They are based on reverse engineering the Silhouette USB protocol so might be slightly buggier than Silhouette Studio.
* Robocut
* Inkscape-Silhouette which lets you cut directly from Inkscape
* Inkcut
You can use it to make customs T-Shirts, bags, signs, do glass etching and more.
If you need help see John Davis, or Tim Hutt (who wrote Robocut).