I just did my daily heroic mech run (still need 3 totems... sigh) and wow... 3.0 really made prot pallies shine and ele shammies buff. First, for those who have 3 ele + 1 resto, I'd say forget it for now, just make 4 elemental. My pally barely needed any heals in heroic mech, I'm going to go run magisters terrace later tonite or tomorrow and see how that is without a healer. Prot pally threat gen is INSANE now, usually I wait 4-10 seconds before DPSing or one of my shamans will pull; now I can start DPSing instantly without a problem.

Searing totem is also awesome now, it just spams little fireballs pretty far away, pretty funny to see it in action actually. As many have said, mana is totally crazy now, never had to drink whereas previously pretty much every fight required my pally to drink. I don't even really bother tanking anymore, just spam consecrate (same button as lb on my shamans) and maybe occasionally holy shield, hammer, or hammer righteous.

The little demons are as dangerous as ever, everything on the pally is instant now which is awesome (shield, holy wrath, etc). I haven't used thunderstorm yet, afraid I'll knock mobs into another pack lol