Comsec, Westpac etc will give you an account and you see your market depth for free.
Are we talking about the same thing here?
Are you perhaps referring to Level 3 market depth, where you see the individual orders as opposed to Level 2 market depth which only shows the total orders at any one price? Level 2 is free from just about anywhere. Level 3 you can get from "full-service" brokers like AOT (now absorbed into Comsec).
I think some people have level 4 depth where they can actually see the names of the parties which have placed the individual orders but that may be an urban myth.
