From all the scenes in an architectural visualization project I believe that rendering a kitchen is a challenge by itself, not only because it has several different surfaces demanding a lot of work from artists. The reason for the challenge is the amount of props required to give realism to the scene. A regular kitchen has equipment, food and several other kitchenware. Do you have all this in 3d? Ready to use?
Well, I found some of those kitchenware models on Blend Swap and you may want to check them out.