I'm rebuilding a small CNC lathe and I've got a fairly solid servo to use for the spindle.

It's a Global Motion Technology DC Brushed Servo
72VDC
7.8 Amp continuous
40 Amp peak
4500 RPM ±10 % AT 72V
2750 RPM ±10 % AT 50V
http://www.motiontek.ca/pdf/SM34840.pdf

I'll be running it on a Gecko G320X driver (Max 80VDC, Max 20Amps current) http://www.geckodrive.com/gecko/imag...0Formatted.pdf

Can anyone recommend where to get a power supply?
Ideally I'd like 72V for best performance, but could cope with 48V plus I guess.
My understanding is that a simple linear (not switch mode) power supply is best as they tolerate transient peak current draw better.
Or is there something I can do like chain server power supplies (I've seen people do this for battery charging).

I'm located in Australia but happy to build from abroad.