4-Max, Purple Power "EESC" types of ESC -
http://www.4-max.co.uk/esc.htm
-Are all made by EASYCO -
http://myeasyco.com/
They make: 25, 33A ESC's - for 2-4S LiPo, with linear BEC
and: 45, 60, 70, 80A ESC's - for 2-6S LiPo with switching BEC
http://myeasyco.com/esc_list.htm
-And these ESC'suse a distinctive EASYCO programming card -
http://myeasyco.com/program-card.htm
There seem to be no other dealers for EASYCO, other than 4-max "Purple Power"