Os Commerce site with attributes

We need to launch a website that sells "Vinyl stickers murals". Reference sites that does (not exactly , but 95% ) what we need: ///////////////////////////////////////////////////////////// [login to view URL] [login to view URL];seccion=ver_producto&categoria=Fauno&familia=Fauno [login to view URL] ///////////////////////////////////////////////////////////// At the beggining We will have 50 products divided in 4 or 5 categories. Those 50 vinyl design will be provided by us in any format you'd like ( pdf, wmf, ai, cdr, swf ) Visitor should be able to select desired color between 40 in our color pallete Visitor should be able to select background colour ( just to see the combination) Visitor should have 3 standard sizes from where to choose from, and a custom text field to introduce a special and exact size for a certain circunstance. Visitor should then add the product to the cart. The order should be generated with all the info : Design name ( let's say circles352 ), size ( 150x467) and color ( "storm gray" ) Login/Chechout process may be simillar to zencart sites. Payment methods will be cc, bank transfer, western union, paypal. Estimate Shipment will not be necesarry since carrier fee is fixed at a regular price. Administrator should acces to an admin panel. Admin should be able to change prices, create new products, etc Becasue of the interactivity needed on a new item ( the design should change its colours on the visitor screen according with the desired color of the visitor ) , we should think in a standard way to make future inclusions without needed the coder each time. may be the design must be uploaded in swf format. We can create swf files with a script embedded that handles the color and background color issue. Lets say the dimensions are 500 px x 500 px and it must take the variables ?color="green"&?backgroundcolor="yellow" from the url of the page or something like that. I mean , we need to have full acces to create new items for sale in the near future. and those items should react and interact perfectly according to colors choosed by the visitor. Admin should receive emails each time an order is placed. We will provide the look and feel of the site so coder have an idea of the design we are trying to reech. You can do this based on OsCommerce, ZenCart, Joomla, whatever. The site will have 4 or 5 pages like Who we are, Legal notice, Shipment, etc Those pages will be plain text and a few pics.