I would like to encourage you to take a look at Autodesk Inventor Publisher, to help showcase and communicate your designs. They say a picture is worth 1000 words; a Publisher animated assembly speaks a thousand times more.
Publisher supports the most common native CAD formats (Autodesk Inventor, CATIA, ProENGINEER, DWG (3D), DWF, STEP, IGES, and SAT).
Download from here
, and have a look at the features on the product page here
Looking forward to seeing everyone's results this season. Good luck all!