Shanghaiist Dinkum Drinks: Let Shanghaiist buy you a beer

We're sure you are all marking the days off on your calendar, but just in case, here's a reminder: Three days and less than two hours to the Shanghaiist Dinkum Drinks Happy Hour!

Here are the fair dinkum details:

What: Shanghaiist Dinkum Drinks Happy Hour
When: Friday, Sept. 22, 7-11 pm (but we'll stay there longer than that)
Where: Senses Wine Lounge, 515 Jianguo Xi Lu, near Wulumuqi Lu
Drink Specials: 2 for 1 on selected Aussie wines (normal prices start at 40 RMB) and 2 for 1 on Coopers beer (that's two bottles of one of the better brews found in Shanghai for RMB 30)
Food: The barbie will be fired up out on the patio
Music: All the best (and some of the worst) that Australia has to offer, courtesy of Shamus' iPod.
Movies: Aussie movies outside (weather permitting). Chopper, anyone?
Dinkum?: You bet.

Want Shanghaiist to buy your first drink? Answer the following question. The first person to comment below (using a legit email address) with the complete correct answer wins. We'll put your name on a list -- track down Dan at the party, and he'll get you your drink.

Here's the question:

Name the four teams who will contest this year's AFL preliminary finals? AND What is unique about these finals?