We have two tanks standing at max melee range on opposing sides of Huhuran, one to the front and one behind. We then have all of our additional melee soakers stand huddled between the two tanks (still slight room to backstab), so the tanks hardly ever have to deal with being slept as it will usually be cast on one of the melee soakers and the tanks won't be in range. This is just a sweet deal for the trivial bit of the fight, it makes tanking a breeze.
Just before 30% and after the final sleep have melee spread out to max range all around her and start DPS, that way they're not all being slept at the same time and a large portion of them can continue DPS throughout the blitz. It shouldn't matter as much if the tanks are slept at this point, because only one will be slept at a time. The first tank should pop Lifegiving, Last Stand and any other fancy tricks before the next AE sleep. I believe there's enough time to pop one trick and the next just after waking from a sleep.
I personally don't have much advice for your healers as I'm pretty focused on the melee side of things. Just be sure that they stagger and spread out. Your PoHers should all be on opposing ends of Huhuran (North, West, South, East), so if any are hit it'll just be one at a time. Between spot healers, green Warlock candy, NR pots and whatever else you bring to the fight, the majority of your soakers should be able to hold out long enough to DPS her down.
Here's my max NR gear on my rogue:
http://ctprofiles.net/profiles.ct?a=...229&pid=111847
I usually drop a couple pieces for DPS gear. Obviously there's a better craftable cloak available now that could replace some of my epic NR; however, those are from AQ40 pre-Huhuran, so nothing fancy. We've had no Green Dragon kills and did her in before all of the fancy, new craftable NR, athough fixing her AE silence kind of negated that. :ph34r: