Brembo makes their sport brakes for the Cherokee, at least up until 1998. I am not sure if the brakes changed after 1998. Anyway, you can get them drilled or slotted, but not both. Both models are compatible with the Jeep ABS system.
Also, Performance Products sells a rear disc conversion kit. It isn't worth it in my opinion, but worth mentioning. It isn't in their online catalog, but shows up in their printed catalog which you can order for free.