Hey chocolatBabe, you can definately turn up at the open day, i did (in Melbourne) and now awaiting confirmation on my start date! (looking like the 20th of this month) Although not essential, but if you can remember to take with you the reference number they give you when you submit your online application to the interviews as they do ask for it (and probably looks better on your behalf that you have taken the time to finn-in the online application)
Best of luck with it all and if you need any help/advise everyone on this thread is extreemly welcoming
Best of luck!
Cheers