There is an interesting article in the latest Army news magazine
Army - The Soldiers Newspaper : June 24th 2010, Page 1 - Defence Newspapers | The Soldiers Army on page 9 called "Setting a new course" about the SAD or Ships Army Detachment on the LHD (mind you in the article said that will a redundant term on the ships).
80 army personnel form part of the 243 permanent crew which is a large proportional increase on the current 20 SAD out of a crew of 240 on a LPA. The Army really seem ready to shoulder a large part of the burden of manning the ships, which really makes a lot of sense as they are primarily being acquired to support the Army. They really will be "Purple" ships with even the airforce coming to the show, as I understand that they will provide Aircraft Traffic Controllers for these ships (They already handle this role on behalf of the navy at NAS Albatross).
It looks like the four landing craft will be permanently embarked which again makes a lot of sense. Though not stated here I understand the crewing for the craft will be 50/50- Army/Navy which is another change from the current LPA model where their landing craft are not permanent embarked. This is another example of "Purple" cooperation with this time the Navy willing to help shoulder the burden of crewing the landing craft, as opposed to the Tobruk model where the army operate the LCM-8 and the Navy operates the LCVP's.
Also interesting is that it states that they do plan to operate the Tigers (and Chooks) from the LHD so that is at least a possibility.
As I understand, it they will also have a company of light infantry and a flight of four MRH-90 embarked on routine deployments. This is so they can respond to disaster relief / emergency evacuation type scenarios a lot quicker than being have to sail back to Australia to embark the troops and head back "Up Top". “Jack” might start to feel a little outnumbered with 250/300 Army onboard routinely!
On another note the Navy announced recently that they will be raising or rather re-raising a non-technical aviation (Birdie) branch. I am not sure of the title but basically they will be aircraft handlers who will also look after things like flight deck fire fighting. It’s good to see that the navy is looking ahead and realises that these ships are just to aviation centric for these roles to be fulfilled by non aviation ships company as an ancillary duty. If I had my time over and was looking to join up as a young kid I think it would be an interesting branch to be in (Hard work I Know!)