stepper drivers

I am new here and am about to start building a CNC machine to to
circuit boards and possibly Fuel injection Throttle bodies later.

I am am trying to decide if I should get a camtronics board which I
have read about many times in Nuts and volts and seen many times on
the internet. Or should I get a FET-3 from stepperworld? The price
and power of the FET-3 look a bit better, but I have not seen any
examples of machines using one on the net.
Does anybody here have any experiences with the FET-3 ?

The rest of My machine will use some used(but in good condition)
Parker stages which I got from a surplus guy who did not know what he
had :) I plan to start construction soon.
Any help will be apreciated.

Marvin Fugate
Salem Oregon