I've written up a post regarding healing with mouseover macro's and more in the druid forum, which is an effective less CPU demanding alternative to healing addons. However since the basic outline of it all can be applied to all healing classes I figured i'd make a link within the forums of the other classes since well... I wouldn't expect a priest to take much interest in anything from a druid forum unless he/she knows there might be something of interest to him/her. So hoping this might spark some interest for it, atleast for those who would use this for themselves:
http://www.mmo-champion.com/threads/...-s-Compilation