I know there are for fogs. But nothing is a direct replacement, you have to go for the whole kit.
As for DRL's, I know there is no easy replacement short of doing some custom work to the sockets etc to get an HIB bulb into the DRL spot. I know a lot of people have used LED's in the DRL sockets (direct replacement) and have liked them. You can get LED's in almost any color you want, but matching them to your HID's may prove difficult. You can also read my thread about LED DRL's and the troubles I am going through to keep them from burning out.