I've had alot of emails asking where I purchased my DVD tins. I purchased them at http://www.effectuality.com/ .
Here is what they have to offer for the tins:
Quantity Discount Your Cost
100-199 You Save 5% $1.188
200-499 You Save 10% $1.125
500-999 You Save 15% $1.063
1000 or more You Save 17.5% $1.031
The company is in Canada. These are the Canadian prices. Their shipping is reasonable too. Check them out!