doctorzylo,
They do have digital pots or analog pots, you can choose your preference. The analog pots are the ones with the cylinder wiper that you mechanically turn. The digital pots have two pushbutton switches, one to increase the resistance of the pot, and the other to lower it. Many sterio systems have this technique for volume control. Why don't you look on a distributors website such as Digi-Key or Allied Electronics and search for something like that.