| CAD Software Resources |
A free program from the makers of Solidworks. Video tutorials are available. PC and Mac versions.
http://www.3ds.com/products-services/draftsight
Tutorials:
https://www.youtube.com/user/DraftSight
An inexpensive program that preforms well. You can purchase older versions on amonzon.com cheaper than the current version. $20-$125. PC and Mac versions.
A fully featured industry standard. Expensive to purchase but student versions are available.
http://www.autodesk.com/education/free-software/all