If you had to farm 3 instances to max gold per hour, what would you do?

My situation . . .
I took 8 months off from WoW, now I'm trying to gear a team asap. They are 85s and pre-heroic gear. I'd like to up their item level on the AH a bit before tackling heroics and farming cata drops. I have limited time to experiment with different instances.

It sounds like firelands is great cash, but I'm woefully undergeared for anything like that.

My Research so far . . .

I found Shadokan's instance farming thread, but it has been closed.

http://www.dual-boxing.com/showthrea...rming+instance

It was also wrath specific.

What I'm looking for . . .

I'm trying to find the sweet spot of an instance with good drops (silver, cloth, de) that can be run 3-4 times an hour. I was wondering if there were better spots to farm with 85s today than with 80s in wrath?

Any thoughts?