No idea on price but naturesfabrics.com have it (and often velour prints)... they have a yahoo group you can join for a 20% discount code.
Shipping from the US on these sort of non-lightweight fabrics can be pricey.
Craftymamas.com.au also have some apparel nicky velours at the moment.
Lucky Mummy to three little girls - Miss 5, Miss 3 and Miss 1.
And... Mr June 2012!
Four kids. I'm sure they told me I was infertile...