I have never heard of this but I've recently stumbled on something called "Sock Blanks". It is 2 strands of undyed sock yarn knitted up into a big rectangle ready to dye. After you've dyed your colours (variegated, handpainted, solid) you can knit straight from the square and make 2 identical of sock at the same time! BRILLIANT!
On top of that I've also stumbled upon Yarn Workshop which supplied undyed yarn in huge amounts for really cheap! And they do dying workshops. Now THIS is exactly what I wanted. Sydney, here I come...again :)
Oh, and how could I forget about Etsy? There are so many differnt colours of hand dyed yarn there. Plenty in the colour I'm after too. What to do...what to do?