My healer macros are usually along these lines:
/micon Cure
/ac "Stone II" <mo>
/ac Cure <mo>
/ac Cure <t>
similar for regen and aero / aero II, etc
I really like this setup when playing heals cause you just mouse over the party window to heal players, then mouse over the enemy list to go on the offensive (after ur first heal, the enemy list is fully populated.), you can add dots to each enemy without loosing your main target, etc
