Yeah, I was going to say aqua knead it would be my choice. Also - I've had really good service from Bay Plastic in Tauranga. They ship and are really cheap. They also cut to exact dimensions and only charge you what you buy, not the whole sheet, so you only pay for what you use. I had my 1200x30x3 dividers sent up in a day and including courier it cost me around $20 for 2 dividers. http://www.bayplastic.co.nz is their url I think.