One thing you should be aware of -- if you are either unaccustomed to eating beans, or just prone to gas pains, you should soak your beans overnight, discard the soaking water and cook in new water. Even if you're cooking them in the crockpot.
(If you've got a cast-iron stomach, or if you're just a BeanLady/BeanGent such as myself who eats beans all the time, then you can skip the soaking with no untoward intestinal side-effects. But if you are new to the joy of beans, Soak'Em!)
Best, BeanLady