I think I heard that he gets 40 grand from his job with the RAF, plus as someone else said he inherited a great deal of money from his Mother. As for Kate, I am not sure, but she comes from a wealthy family of course, so there is a chance she may have a trust fund or something, I have no idea to be honest. If other Royal weddings are anything to go by, she may be pregnant very soon! I seem to recall both Diana and Fergie produced heirs very quickly.