Im using the electronics from "motion Control Products" http://www.motioncontrolproducts.co.uk/ ... ducts_id=8

They also sell on ebay, they have been very helpful offering advice, you can phone them and it's not just one guy, Bit more expensive that some of the ones on ebay, but if you after something well made and reliable with nice accuracy then give these guys a call.

Ive read about a lot of problems with some of the cheaper ebay controllers overheating and not handling there specified ampage etc, similar problems have been reported about stepmasternc but have never tried one myself, just something for you to consider.

DJH