This isn't valid for everyone, and I'm not sure if it's necessarily a "deal", but if you happen to have elite status with a non Oneworld alliance airline, you can get a free 12 month status match with Air Berlin to their Top Bonus Gold level. This is Oneworld Sapphire, which gives you automatic access to Oantas Lounges for you + 1 guest, along with the usual elite status benefits.
The bonus with this is that Air Berlin seem to have a partnership agreement with Virgin Australia, so with the one card, you can access Virgin Lounges when flying Virgin and Qantas Lounges when flying Qantas.
My status match to Star Alliance Gold came through in 2 days. I don't fly business on domestic flights, and don't fly enough domestically to get status, so it's quite valuable for me.
I wonder if i can get them to match my Etihad Gold Status - I got earlier in the year.
(still havent got my card yet…..)