Which plugins can I use?

Hi, I’ve to make the following site. There has to be a webshop with a catalogfunction for everybody (so there are no prices or shoppingcart),behind a login there are prices and a shoppingcart. The site must be in two languages. By a product there has to be 1 medium image and more than one small detail-images. All of those images must be enlargable. Is this possible and which plugins do I need? I’ve bin searching for two weeks which platform I should use for this. WordPress would be my favourit cause of experience with it. But I’havne’t got a clue which plugins makes the whole pakkage work.

Greetz Erwin