G33 code and encoder etc. for *hobbyists?*

Microkinetics sells an electronic threading kit (encoder) that will fit a
sherline lathe.
see bottom of this web page: http://www.microkinetics.com/cncsys.htm

However, this company is geared more to the professional rather than the
hobbyist (Sherline full CNC lathe/software etc. from them sells for $3,250.00)
see: http://www.microkinetics.com/btlathe.html

I would like to find a cheaper alternative, for hobby use, based on a CNC sherline
lathe with a thread encoder and inexpensive G code interpreter that supports
the G33 command. Many companies offer sherline CNC equipped lathes but the
only G33 capable machine i can find is this one from microkinetics. Even
purchasing their threading kit alone ($ 269) would be ok, but i am uncertain
about the hardware/software interface with other company's motion control
driver boards and software.... Anyone have ideas? or is G33 (canned threading)
for hobbyists an oxymoron?? <G>

(BTW, a search of this list's archive for "G33" gave only one hit.
ANY discussion whatsoever on this issue is welcome!!!)

charles keller
keller@...