I love black counters too and I think a black and white kitchen would be pretty timeless. That first picture looks very similar to our kitchen with the floors! They are a very similar color.
I am also trying to convince DH now that we should probably have a farmhouse sink. I do like a double bowl sink, and there is actually a farmhouse double bowl sink at Ikea
I have been dreaming a lot!
I really like marble countertops but I think I like them better with dark cupboards. All white is just a little too bright for me