I am trying to create my own 3D image of a dune buggy. What is the easiest and cheapest way to create this? I would think I would need to create it using a 3D modeller and then give it, its functionality using OpenGL in Visual Studio.net. Can anyone point me in the direction of a good 3D modeller that can be easily learned? Please help!

Milkshape or Wings are both about as easy as they get to learn. Milkshape can also export to just about every format, which is pretty handy. There's a bunch of tutorials, plus forums if you get stuck on something. GOod luck.