basically an online shop without the need of a shopping basket or
You could choose a CMS at http://www.cmsmatrix.org/ to meet your exact needs.
But,if all that you want is truly only "an online shop without the need of a shopping basket or payment system" then, IMO, you can't beat Drupal, which is extremely popular, extremely powerful, but still capable of being used by not too tech-savvy users and which can still quickly generate a site.
For a product catalog, see Setting up a Product Catalog, or consider the Spider Catalog module.
Spider Catalog is one of the best Drupal Product Catalog modules
available. It is an effective tool for building product catalogs. It
is highly customizable and has a clear and easy-to-use back-end
You can find a demo here.