Smart ans Fast Search Filter for Webshop Needed!

We have a Interspire Webshop in need of a Smart and Fast Search Filter that would allow customers to easy find the product that matches their needs. The webshop is selling a various range of productcategories like: - Haircare products (Schampoo, Conditioner, hair coloring etc) - Perfume - Coffie - Books Since type of product is different depending on category and new categories will be added by admin the solution must be smart also backend, so admin easy depending of category type, can add/edit or remove a setting and choose if setting should be checked / set by default or not. Once added all products in shop using the specific category setting will automatically be effected by change. Here we see one kind of Search Filter on left side : [login to view URL]^jxColor%2CBlue REQUIREMENTS: - We will not choose any developer that does not include URL to a similare Search Filter as the one we are requesting - Precious AJAX and jQuery Expertise IS a MUST, please include references. - The Search Filter must be superfast, look good and user friendly both Front-End and Back-End