For those of you looking for Sodium or Potassium Hydroxide I recommend :

Industrial Cleansers
Unit 2a / 424 Bilsen Rd
Geebung, Qld 4034
(07) 3265 6311

Ask for Jill, but ring first and ask about availability of materials first. Prices are good.

They supply in 25Kg bags, also have methanol in 20 litre containers. Sulphuric acid too if you are really adventurous and try an Acid / Base reaction. Just remeber to keep the NaOH or KOH in an air tight container, do not rely on the bags they come in.

Regards,
Matt