Regarding layout, a point made by a forumite on previous kitchen thread was to avoid very wide wall cabinets, use narrow ones or avoid entirely, over a much used work surface as they can be a claustrophobic. I took that advice and it worked for me, although I am 6ft5in so maybe not everyone feels the same way. You might consider space for a small wine fridge to keep wines at serving temperature. I bought a small wine fridge for the kitchen (I have an all in one kitchen, dining room and sitting room layout so fridge close to dining table) with two different temperature compartments for serving wine. I took out most shelves so could store bottles vertically, to aid sedimentation on old wines and so could then decant and put decanters back in fridge ready for service. Optimized for red and white Burgundy, one is set at 11 °C and one at 15°C. Solves a lot of problems and worries about temperatures.