One easy way so customers can see all products information without going to product detail pages is adding a popup infobox and when the mouse is moved over a product image, the product's name, manufacturer and attributes will be displayed on the popup. The demo can be found at: http://www.arearugsclub.com/rugs/karastan-m-1.html

If you want to have something similar to this feature for your zencart site, please contact us.