This item from a Todd Brickhouse Associates newsletter includes some good kitchen design ideas. Scrolling down the page, you can see a picture of a pull-out table that nests neatly under the kitchen bench and over the storage drawers when not in use. Colour contrast is mentioned as an important feature. Another idea is a dual height island bench which has multi functional use. The newsletter includes other items that are probably more specific to north America and also some disability specific items.
Editor’s note: I included a pull-out workboard in my kitchen. It is at a height for sitting to prepare food, for a child to make a sandwich, and for stirring a large mixing bowl at a more convenient height for my arms and shoulders than the bench.