SolidWorks 2001 is the one I am the most comfortable with. I was just recently told the price had almost doubled from its original $3995
SolidEdge ver 9.0 is very similar in feel and use to SolidWorks
IronCad 4.0 can make models in one fifth the time of other modelers, and many of its features have been stolen by the big names. All your shapes already made for selection, just resize and shape on the fly.
Also around $3500. They have a very good 4 CD/2 Book tutorial series for $200/$99 student.
Inventor 4.0 ($4995 from AutoDesk, just like Autocad)is a very clean powerful modeler that now replaces Mechanical Desktop (ver 5.0 the last) and probably AutoCad too, but the latter still has momentum just by its name recognition. AutoCad is up to ver 2002. AutoCad and its endless cascading windows is a dinosaur, and the last one i would recommend for a newbie. AutoCad only has residual value for its extensive drawing mode options (prints). Even venerable MasterCam has abandoned cascading menu bars in ver 9.0.
If you want to learn something to make good money at, you need to learn ProEngineer 2001 (ProE), or Catia 6.0 which the big aerospace and auto makers use. But here you go from $20,000 - $80,000. ProE is available online CBT from PTC.
Ashlar Vellum and Bently MicroStation are good but obscure.
CAD/CAD-CAM is progressing very fast thanks to corresponding increases in computing power. A one year old program is "old".