Catalogue online

HI, I pretend a catlogue online, simple and easily to refresh. Will have products, this gonna be separate by categories and Companys. Wich PRODUCT (DB) have: - Company name (image) - Categorie - Photo of product (thumbnail) - Name of model - Code od model - Description - Price *private only for user registed - available or not *private only for user registed - in promotion or not NEWS ( DB) Title, subtitle(suport images) and Body(suport images) In the front page, i want easely to redesign the page, for this i thing that the code, to get data, was to be simple. Scripts have to had to get data: HOME PAGE - Show companys images or and by drop down *my option - Show categories images and or name *my option - Search by categories,companys,name or code of model - show products in promotion - Show news title,subtitle and body *option only title, title and subtitle or tile and body - Login CATEGORIES AND COMPANYS PAGE - If categories shows products, only x numbers for page(my option)and logo of company - If COMPANYS show categories that have products fo that companys PRODUCT PAGE - Show in top what categorie belongs, then Company, name and cod of model, description and photo(Tumbnail then click and in new window enlarge) and only for registed users the price. In Backoffice i pretend forms: - Creat Categories, companys them products - Change Categories, companys them products - Creat and change NEWs The users it´s admin that create: - Name - mail - Company name - City - Phone I think this´s it, i open to sugestion