I'm going to Sydney and Melbourne Rumba! Don't worry about what they say about lining up ect, all venues say that. They said that about Universal last year (as you both said) i got there about 12:45 in the morning and had no problem. I did hear the GA line had to get up and move though.
As far as Rumba goes i'm not sure how it all works yet if it's all on one stage (how crap with that be?! Sitting for 10 hours full of crap waiting for Jovi allll day!) or if different bands are on different stages, who knows??
It's getting pretty close though and i'm very excited!!
Emma