So yesterday I was starting level 61 and I saw a message in general "LF
good healer for slave pens" and decided I'll experiment pick up groups
in harder instances.
I ended up in a party of level 61-62, very balanced (hunter, mage,
warrior, druid) with molten core-level gear, asking where is the
entrance, etc. I kindly told them to just go to where I was to get the
flight path to Zabrajin, and I'd show them the way - I also mentionned
I had been through the beta and that I'd help them figure out what
would be dangerous and not.
The level 61 druid was practically the cornerstone of the party, of
course, because he was the most versatile element in the party. I
immediately asked if he had healing gear, tanking gear and dps gear -
he replied he had all of them, but he was specced for cat (of course,
duh, why would he be looking for a healer otherwise

).
basically, I said:
clackers = bear form because they are hard to control with only one
tank
nagas with a healer = caster form because I'll probably be mind
controlling it
rest = cat form
and for bosses:
1st boss = cat form
2nd boss = healer form because we need to bring tanks back to full life
to stop a debuff and I can't do that on my own yet
3rd boss = ranged dps form because we need to dispel that poison debuff
Guess what? we cruised through the instance and one-shot all the level
64 bosses.
(two wipes on trash though, one on the first clackers because the druid
stayed in cat form, that was before my briefing, one due to me being
feared during mind control into another group).