After sorting that out, the biggest issue that remains is how to cleanse the poison with the fires. After thinking that maybe we could spin the grounded worm around to always be facing the tank and melee, we decided against it as ranged would be caught in the middle and the worms don't always pop up in the same place, complicating positioning. What finally worked is we had Magnidur and/or Santorum, our DPS DKs stand with Aravic infront of the the worm, gathering up the fire debuff and they would then go out and burn the poison off the ranged if they got hit by the grounded worm. On our one good attempt, we had some issues, and we even needed Aravic to go cleanse at one point, but we got them down. Also, of note is the fact that when one worm dies, the other enrages. However, the enrage is only 50% more damage to whomever is tanking the worm. So it wasn't that hard to heal through. The issue remains that there is no downtime between the three stages of the beasts, so very little regen time, but with proper conservation, our healers did a great job.
The final Northrend Beast is Icehowl, and he's pretty much a joke. Once you get past the worms, you shouldn't have any issues. In fact, we lost two players during the worms and Icehowl was just a pushover. He does some AOE raid damage that the healers must deal with, but nothing too huge and as long as people know that when he knocks you back, he'll pick someone to charge, and you just need to move out of the way, you won't have issues. So even down a healer and a DPS (we run 3 healers on new content usually - and even some late Ulduar content), we easily beat Icehowl.
So down they went. And we'll have to wait until next week to fight the next boss. We got two DPS DK items that both went to Santorum, and that was it for the night. I unfortunately missed last night's Ulduar run, but another Super Simian Sphere dropped and went to Dylana. So now Aravic, myself, and Dy can be the monkey ball trio!