I want to add UPS shipping but I want to require a minimum if that option is selected

Currently our store does not have an order minimum and we handle all the delivery of the orders. I want to add the option of having orders shipped, but I need to require a minimum order amount.  Any ideas?

It would need customization, or Shipping Director can do it.  For example, if your own 'delivery' was free (0.00) :


Option   UPS        [$SubTotalWithDiscounts] >= 100.00         Shipping.UPS

Option   Delivery   [$SubTotalWithDiscounts] < 100.00          0.00


(or if your delivery is using the By Weight:

Option   Delivery   [$SubTotalWithDiscounts] < 100.00          Shipping.FIxedOrByWeight

Thank you.  That is just what I decided to do. When does Shipping Director evaluate? Would I be able to pass info to the user. Like: "Want to ship to your door? You only need $X more items."

Shipping Director is a Shipping Provider plugin (aka shipping rate calculation method).  It evaluates on the cart page for "Estimate shipping", and on on the checkout page for shipping method selection.  It can't put up a message as you describe - that would require customization (or the future planned "Checkout Director" ;)