It has been a long time since I have had model trains (longer than I care to admit!)--a love my father inspired when I was a child, but my father just discovered his most valuable trains went missing from his collection most likely by way of a family member and he is no longer interested in his trains, and cannot (will not...) answer my questions... I need some help please! 

Now that my son is of an age to be inspired, and since he is an absolute Thomas nut (even more than myself!)... I have started our own HO scale collection and we now have the HO scale Thomas and coach set, Emily and her coaches set, and the James set, and are working to collect more, but are tired of the mass of wiring for the multiple controllers.   Can I use a digital controller with the HO Thomas trains?