I love the ivory/black color combo. It looks so up-to-date and smart. But you are wise to think about how much black and where to place it. Personally I would go with EITHER the black coffee table OR the black dining table.
Either way, I believe another color in the room will keep it from being to stark and cold. It could be a beige, or a red that is not to pink, grey or even blue.
Wonder how a geometric print area rug with your base and accent colors under your dining table would work. Hmmm. Add some pillows or accessories in your accent color and you're on you way. Send pictures.