Well Loogie, in 4e D&D you don't really need a cleric as a healer. everyone can heal themselves either through Healing Surges, Second Winds, or simply short or extended rest periods. Example, your front line fighter is taking a beating? Instead of attacking one round you take a second wind and regain a certain amount of HP.

Conversely, the Cleric has nifty abilities to use while in a fight to allow their allies to heal damage. example, Your Cleric whomps a badguy and your ally gains a healing as the cleric channels the healing.

So, gone is the cleric being the battlefield medic who's sole job is to run around patching the wounds of their allies, rather they are a pivotal part of any band of adventurers who are good in a fight but can assist an ally stay healthy a little longer.