I have fitted Denali D4's to the CT, the XRV750 AT and the R80/GS. Each has the dipping relay as well. I think they are the best compromise between power and not upsetting oncoming traffic. They give a good flood of light on dip and enough range on main beam. They are in a different league compared with the cheaper alternatives several of my mates have fitted to their bikes.
I did consider the D7's but think they may be too powerful for normal road work.