Custom Banner and Sign website

Upgrade existing website ([login to view URL]) for a custom sign manufacturer by adding an ecommerce section similiar to [login to view URL] and [login to view URL] where customers can design custom banners and other signs. Site users should be able to choose a custom size (from approximatley 1 foot by 2 feet to tens of feet in length). Choose from a variety of colors and font styles, and lots of clip art options, and sign materials (such as banner, alluminum, or magnetic). The webite should be able to calculate price based on custom size, selection of material, and sign type and account for discounts on large quantities, and shipping costs based on user provided zipcode and total shipping wieght. A section for uploading an existing artwork file should be provided. Customer should be given the option of creating an account with username and password and save contact and billing information. We should be notified when and order is placed and recieve customer contact and shipping information and a picture file to produce the custom sign. It should be easy to change and update products, colors, sizes, materials and photographs on all the the pages.