If you're looking for a solution that is ready-to-go with many features but is still very easy to use, our AI Export module may be just what you're looking for.
In summary, AI Export allows you to save multiple parts to multiple formats in a single operation -- supporting all output formats that are supported by CoCreate Modeling (STEP, SAT, 3D PDF, etc), including the CAD-specific adapters (SW, etc).
If you'd like to try it out, we have a demo version available for download on our website. The demo version has some usage restrictions, but it should give you a feel for how it works and how easy it is to use. Here's the direct link to the product page:
http://www.asp-inno.com/prod_export.html.
Enjoy!
andy