JakeMagee.com [Insert Slogan Here]

Ok, so I need a piece of software for designing my bar top arcade cabinet (and a couple other things).
My current options appear to be:

• http://sourceforge.net/apps/mediawiki/free-cad/index.php?title=Main_Page
• http://brlcad.org/
• http://www.blender.org/
  • Extremely popular
    
  • Extensible
    
  • Multiplatform
• Google Sketchup
  • No native Linux support (wine only)
  • What is the difference between templates?  Why does the template viewer only show 3 but in preferences->templates->browse there are 14 (wine bug?)?
  • Doesn't seem to work well with Compiz (extremely slow).
• http://www.gcad3d.org/
• http://www.cad-schroer.com/Products/MEDUSA/M4Personal/
• http://www.ribbonsoft.com/qcad.html

I need easy 2D drawing with dimensioning.  Ideally, I would also like 3D support.