CNC Mill Conversion.

Hi Guys

I am new to this CNC stuff and have just joined the group. I am
planning on converting a bench style Mill/Drill machine to full CNC
control. The factory feed screws will be replaced with
re-circulating Ball type screws and driven with Servo motors. I am
thinking of using the Gecko G320 Controllers and mounting everything
inside a Camtronics enclosure. This enclosure is a nice set up and
comes ready to use with all of the connectors. I have a couple of
questions in regards to parts type and availability.

(1) Looking for a good place to purchase Ball Screws?
(2) Looking for a good place to purchase Servo Motors?
(3) What size of Servo motors will be required for one of these
Mills?
(4) What ratio works the best between the Servo Motors and the Ball
Screws? (I have heard both 2:1 and 3:1) Concerned that with 3:1
ratios, the Servo motor will not be fast enough and the IPM will be
slow?
(5) Is the G320 Gecko drives a good way to go with the above
combination? What other alternatives are there?

Thanks very much for your help with my questions. If someone has
done one of these conversions, I would be interested in hearing your
comments, both good & bad. Thanks again.

Regards
Bill Blackburn

Ontario, Canada