AutoCAD Mechanical

From Autodesk:

AutoCAD� Mechanical 6 is the AutoCAD for 2D mechanical design and engineering, offering enhanced tools, built-in IGES translation, improved workflow and standards compliance, and simpler administration and deployment. Produce drawings, BOMs, and reports, and publish them to Autodesk Streamline", the new hosted project-collaboration service. AutoCAD Mechanical 6 operates seamlessly with Autodesk� Mechanical Desktop� 6 and the premier 3D design system, Autodesk Inventor". So with AutoCAD Mechanical 6 you can create designs AND leverage them for design collaboration.