donno if u have a resto druid but can technically work with any type of healer just run with a 2step and use addon cliques with all cast sequence macros, When you click on a target it sets to your focus, and all your healing macros are set to only cast when a focus is enabled. The heal 2step is in the same 2step as the dps 2step. It just doesnt do anything until you actually click on a target and set as focus.

Check out my vid and see what you think.
http://youtu.be/gLqfeKFbHh4