I'd almost despaired of ever seeing another power supply on ebay ever again.
I was searching the internet for "high-amperage" circutis (found a 12V/30A at
http://www.mitedu.freeserve.co.uk/Ci...er/1230psu.htm btw) when I found a:
24V/50A on ebay for $80.
(I have to say that $80 looked cheaper and cheaper as frustration at finding a suitable circuit mounted.)
Note to self: Buy controller THEN steppers rather than v.v.