There has been some mention here of the new CAD software that is web based and full 3D parametric. One of the major features they tout is its ability to share design work. Supposedly multiple people can work on a design and all see the results. How about we test this by team building some engine. We could use a design that is public, maybe one of Brian Rupnows, where good 2D drawings are available. We could split up the work and each guy just do one or two parts. Have a look at http://Onshape.com to get your free account. A free account lets you hold 5 personal documents and share an unlimited number of public docs.