Very valuable information in this thread.
I am going to start the 10 man content myself in the next few days (groups currently at 80 and 79). As soon as the 79 group hits 80 they are properly geared with a few craftables, the marcos and specs are checked and I'll head into naxx (and voa as suggested in this thread) to see how it goes. Can't wait but I have so much work atm so it is going to be a few days
Bunny