Quote Originally Posted by zenga View Post
I take it there is no questing needed to be able to access a dungeon? In other words, in order to unlock a quest to access a dungeon, you don't need to complete a couple of other chains?
That is a big change in Cata, all instance quests are located just inside the entrance to the instance! No more chains, no more missing instance quests. The only locks you might have are being able to use the LFD tool to run instances. If you don't meet the average ilvl gear requirement you can't use LFD. The simple solution is to go to the dungeon entrance and zone in.

You do have to go to the entrance of new instances at least once to "discover" them, after that with a high enough ilvl you can use LFD for everything. Which will be ideal for most of the new 5 mans since they all require a bit of travel to reach them.