I've only wiped on that boss maybe three times and that was about 3 weeks ago before my gear has gotten better. The frost resistance totem will help mitigate the frost bolt and blizzard -- not by a lot, but every little bit counts. I've never died to the blizzard as you should be able to chain heal through that. You do have to be on top of the frost bolts though, so when Novas starts nuking one of your guys, you can press the appropriate macro to heal that one.
My gear is a little better now, but still not awesome by any means:
http://www.wowarmory.com/character-s...kar&n=Zappyzap