A) Good site for cords adapters whatever http://www.stayonline.com/
B) Specifically starting with data center cords http://www.stayonline.com/iec320-power-cords.aspx
C) Cords for PDU to a PSU like the APW  http://www.stayonline.com/iec-c13-to-c14-15-amp.aspx