Thanks for the info on the items, this is very helpful. This seems like it would be a good fit for some basic flat rate shipping costs. However since the shipping is something that is applied to the total cart and not just an item in the cart I'm wondering how you would like to charge the shipping if the user has two different items in the cart? Would you have a special shipping charge depending on the combination of items? With this last part cleared up I can give you some specific pointers on getting this rule in place.