We asked the question some time back about Ikea kitchens or building our own. The concensus was overwhelmingly to build our own.
So I have constructed supporting walls using 100m concrete block and plastered them with the Lutece 2000. On the top I have used 30mm waterproof chipboard and tiled directly on the top.
When I have time I will make cupboard doors from either oak or Chestnut.