software questions DRO

I'm just getting started on a conversion and have a few software
questions that I haven't found answered in the archives. I'm inclined
to keep the handwheels on my mill, since I plan on the occasional job
done by hand.

1) Assuming I use servo's with encoders, can I use the encoders as a
source for positiong info that can be displayed within a software
package as a DRO? Which software packages allow this? Is EMC my
only choice?

2) Is the above possible with steppers instead of servo's? Can it be
done without encoders? Which software allows this?

I realize I'm limited by the accuracy of the axis ACME threads, I.e.
backlash induced errors (a ballscrew conversion is in the future, but
I want to get things running first)

Realize that I dont necessarily need CNC capabilities and the option
of manual DRO read out at the same time. (real time jumping back and
forth) I'm only after the ability to either cnc a part automatically
(hands off), or elect to manually do things with a computer driven
DRO arrangement. Can this be done?

If it matters, I'm considering Gecko drives (either servo or stepper)
but am open to a change if it offers me DRO capability.

Thanks in advance,

Vin