J-P, glad you asked. The reason I put that there will be additional shipping due is that a few of those sites actually charged shipping to the USA which you hadn't included in your invoice. I did order them all though and should have them within a week or so (The Lowes ones I put "pick up in store" since they don't charge shipping that way). Once I have all the items then I will re-invoice you for the difference, but I can't do that until I actually have the items in hand. Also, the stores charge 6% Sales tax for CT residents, which I don't think you realized. I will send you all the invoices once I have the items, so no worries =) I will keep you posted. Thanks again! By the way, the shoes look really awesome!