Autodesk just announced the release of Inventor HSM Express for Inventor. It is available as a free download on their website; along with information on some of their other upcoming CAM solutions. HSMXpress is a free, easy-to-use full featured CAM solution that allows licensed users of SolidWorks or Inventor to create high quality toolpaths using the latest in 64-bit and multi-core technology. (32-bit version is also available.) Check it out at http://www.autodesk.com/products/cam/overview.