sapper_triple6 - I used Inventor 10 for that one.

Sylvester - That is a custom 2.2 trophy truck in progress. The only real store bought components would probably be drivetrain, wheels and tires.

The truck isn't finished, and may never be. I'm considering it for my Wyotech Chassis fab project though.

The Buick Fanatic

EDIT: The two programs I use, Solidworks and inventor, can get pretty pricey.