hi. this is what jazz sent to me for my psu. i'm running 2 4nm nema 23's and a 8nm nema 34 and it runs absolutely fine

You'll need:
Transformer with 2 x 25V secondery coils with 625Va output.
1 x 35A 300V or higher Bridge rectifier
3 x 4700uf 100Vdc capacitors with holders.

This transformer will work.
http://www.airlinktransformers.com/c...nge/CM0625224/

This Bridge rectifier.
http://uk.rs-online.com/web/p/bridge...fiers/6296320/

Capacitors
http://uk.rs-online.com/web/p/alumin...itors/8712748/

Brackets:
http://uk.rs-online.com/web/p/capaci...clips/2035698/

if you search for it there is also a wiring diagram for it on here somewhere. all you need is very basic soldering skills and its easy to do