Yep Irving, yesterday we were discussing a cheap 24v PSU for Diycnc's drivers and 2 ATX psu's are a great "power to buck" solution.

Another cheap alternative would be a laptop PSU, There are loads of 20v 6 amp PSU's on ebay for around £13 which may be sufficient for your machine, I think they would be great for someone of a less electrical background aswell as no live terminals to stick fingers in!!!!

Another advantage (though maybe not over ATX PSU's as they are well sheilded) is that we could avoid bringing that nasty mains noise into our control enclosures.

Not sure if there is anything more powerful available in the laptop PSU area?

Michael.