e-webstore Needed for existing website

Looking for website designer who has past experience designing an e-store. The existing site is [login to view URL] and looking to expand or add products online (primarly ink cartridges and toner kits). As well update or use your creative mind to enhance the companies overall website. Details: strong background with designing a e-commerce store/webstore (using Miva Merchant possiblity of not using) [login to view URL] Ongoing project will need to add and remove products (updates) constantly Only North american (preferably Canadian otherwise American) contacts will be considered. Provide portoflio of accomplished designs (at least 5) Provide references