Freehand CAD drawing

I need a program that can draw freehand curves. I would prefer a
program that I can set some anchor points and then move the mouse to
alter the curvature of the connecting lines.

I am looking for something with a short learning curve, inexpensive,
and has the ability to export or save files in a format readable by
Vector so that I can create toolpaths from it.

What programs should I look for and what do they typically cost. I
need no advanced features.

Thnaks,

Daniel J. Statman, Statman Designs
www.statmandesigns.com