I personally would just go for the H4 kit b/c it is already made for the stock housing.
The CL ballasts/kit would be cool, but I think it would take some modifications to the housing to make it work. There is another guy on this board that frequents the Accord forum who makes custom HID lights using Porsche, BMW, or Audi HID lights into the Accord stock housing lamps. I think the CL lights would cost a pretty penny too. But if you have the money and the patience to do the modifications....I'd say go for it