Website Transition from Yahoo Stores to New Platform

I have a website specializing in edge tools (a nice way of saying machetes). We are called machetespecialists.com. I have a yahoo store currently, but am open to exploring various platforms. Shopify was recommended to me, but it doesn't seem robust enough for what I am looking for. I have a fairly uniform product line, but I want customers to be able to search/sort by using multiple variables. If you look at one of my products there are about 10 attributes I would like to allow them to search by (either via tags, categories, product type, etc...). I am also looking to update the site generally, to give it a more modern feel. That said, the bottom line is to create more conversions, so I am wanting a very navigable website. Some examples of what I would be going for: [login to view URL], [login to view URL], http://www.crkt.com. I really want is to find a platform/design that allows for intuitive and easy sorting of our products. All content, images, product data, etc.. will be provided by me. Here is an outline of what I would like done: We are open to ideas as to how to improve the usability of the site, but think we would like to begin with the below features: 1) Allow products to be sorted by a number of different variables not currently available by reorganizing the product info table. Elements should be flexible and allow the administrator to add new categories or modify existing options. This sort feature should be intuitive and readily accessible. Products should have the below fields displayed: -Brand -Country of Origin -Blade Length -Blade Thickness (gauge) -Weight -Blade Composition (stainless steel, high-carbon steel) -Blade detail (serrated, black, etc…) -Blade style (bolo, panga, etc…) -Handle (wood, injected, riveted) -Features (sheath, no sheath) -Uses (bushcraft, woody vegetation, grass, etc…) -Warranty With the above fields, I would like users to be able to refine their search in the following ways: -Sort by availability -Sort by price -Sort by Blade Length -Sort by Style of Machete -Sort by Brand -Sort by Sheath/No Sheath -Sort by handle material -Sort by Popularity -Sort by Use -Sort by Customer ratings 2) Add a sequence banner permitting display of 3 different featured products on the home page. Banner should change for each visit to the homepage and not cycle while a client is on the page. 3) Allow multiple images per item, video, and the ability to enlarge the main photo such as [login to view URL] 4) Allow inset images for icons such as “NEW,” “OUT OF STOCK,” “BEST SELLER” such as seen on site [login to view URL] 5) Allow products/pages to be easily emailed to a friend or posted on facebook, RSS, or twitter. Allow ratings and comments. 6) Program different restock notices for various products 7) Include Mailing-list signup form Thanks, Cam