Thanee said:
Could you please stop calling them "Laser Clerics". That sounds horribly stupid.
I call them laser clerics precisely because its sounds horribly stupid.

I got tired of people making fun of my clerics and my lasers, so I've decided to embrace the lasers. I mean, not technically, because they're lasers, and you can't embrace a wave of amplified... uh, I mean, PEW PEW!
Anyways, if you're going to multiclass a cleric into ranger, go for it. But how you do it varies depending on what you want to accomplish as a cleric.
If you're a smashy cleric, you can use two weapon powers reasonably well. Since you haven't got default shield proficiency anyways, there's no major problem with taking two weapon powers, then the two weapon fighting feats. You'll get +1 damage with your main weapon at all times, +1 ac, and +1 reflex. Plus whatever you take as ranger powers.
If you're a laser cleric, the only thing you'll really want will be utility powers. But there are some nice synergies in there. Look for abilities that let you slip away when attacked. You're a ranged combatant anyways, so slide away from your attacker, and shoot him in the face with a laser.
If you're a hybrid cleric (yes, its viable, its just tougher) you can choose what you want to accomplish. But I'm assuming that you know what you're doing if you're going hybrid. It might be best not to multiclass a hybrid, simply because you're already a hybrid, and you probably don't need to be a hyhybrid. But if you know what you're doing, there's no real harm.