What I do in SM with my 80 druid is leave the slaves outside the entrance and then kill the first mob right inside. Otherwise the slaves will aggro the mob as soon as they enter.

Once the first mob is dropped I run the slaves into the instance and leave them there. Pop into cat stealth form and go all the way to the back. You can open the door without aggroing the guys on the sides as long as you open it in the middle

Pop back into stealth form and sneak back and hit the boss and turn tail and run to the hallway in the beginning jumping off the waterfall on the way. When you get to the hallway just duck around the corner. This will force the casters to come up close to ya.

Pop into bear form and swipe them all down when they come around the corner. Have to wait a minute for the woman to show up and res the boss.

This gets about 75% of the mobs in the instance. If you have track humanoids on it looks like a river flowing behind you