Can anyone tell me how to set up wholesale pricing for resellers? I want to have a group named wholsaler that gets a discounted price and no sales tax. Their orders have to be a minimum quantity of 20. I can't find a way to do this for wholesale group only! I can set the quantity discount but it applies it to all orders. I can't find a way to not add sales tax to a specific group either.

What I need to do specifically :
When a customer's group setting is Wholesale, have an automatic minimum order quantity of 20 with discounted pricing and no sales tax.

Thanks for any help, JD