I think you should go ahead and use the names you have chosen.

My hubby and I have had our names picked out for years, and in the meantime one of my cousin and also one of our close friends have both used our chosen boys name. I was a bit hurt with the friend because she knew about our plans, but our cousin didn't. Either way it hasn't changed our mind. When you think about the amount of kids in the world with the same names it won't matter either way.

Do what makes you feel happy... we are going to!