OzKev told me he used these enzymes from ebay in his mash to great effect. I just bought a bag, delivery is $20 so all up its $38 delivered.
Seems a little exxy but if it means i can get good conversion from produce store corn instead of hbs flaked maize it will be very worth it.
http://www.ebay.com/itm/Amylase-Enzyme- ... 2337a8a502
BOught a generic 'magic bullet' from kmart today too. Lucky it has a warranty because i think the motor is going to burn out pretty quickly. Smashes the corn up really well though