What is a good, cheap, 3D part modeling program?

I need a program to design 3D parts, if I had a few thousands of dollars budget, I would of purchased Inventor or Solidworks but they are much too expensive.
Searching the web I only found all kinds of open source programs that are not "professional" enough. I am looking for something cheaper than 100$. Anybody knows about one? Thanks.

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steveastrouk says: Aug 2, 2012. 3:39 PM
Try
http://www.alibre.com/products/hobby/

Its 200 USD, but about the best offering I've seen in that price point.

It can be extended to the Expert version, with simulation, CAM software etc etc
bwrussell says: Aug 3, 2012. 8:16 AM
I thought I remember Dassault saying something about a hobbyist version of solidworks but I could be confusing that with 123D or Alibre. I've heard Sketchup has come a long way, you might give it a shot.
rickharris says: Aug 3, 2012. 12:29 AM
Good /cheap are usually mutually exclusive!
mpilchfamily says: Aug 2, 2012. 3:34 PM
I think one of the best free ones out there is Google Sketchup. If that is too limited then i'm afraid you will have to shell out more the $100 to get something you'll like.
canucksgirl says: Aug 2, 2012. 3:32 PM
I use Blender. It's free. :)
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