Justwannafly mate,
I would definitely go the "share accomodation" option, in fact I did, Darwin is small and to know ANYBODY else there is an advantage, if not for flying, at least for that first beer tap endorsement, night work is great and, don't worry if the job sucks at first, it only makes you more focussed on your goal.
Can I suggest if you have not already done so, a drive out to Arnhem land, I was told that it wouldn't make any difference but when I had driven the 300 odd kilo's the CP changed his view of me and ended up offering me a job a short time later. Not talking about Kak Air (nothing wrong with them) You'll work it out!
As for watering holes I definitely recommend "The Vic" otherwise known as backpacker heaven........
AH sweet memories.......
Don't worry dear we'll always have Darwin
There is nothing quite as useless as a meaningless maxim