Hello! I'm kinda new to Wikipedia (long time reader, recent editor) and I'm not sure that there's much I can really contribute, however I think that it is an excellent idea and a great project. So far, I have just fixed some ambiguous sentences and a few misspellings (mainly related to names of places around my hometown Brisbane, Australia) although I have added a bit to the entry for Mansfield, Queensland.
I have some ideas for the set of pages about the Brisbane rail network (I really like the little box about the lines on the List_of_Melbourne_railway_stations) and maybe Brisbane public transport in general, but we'll see what happens. I'm still learning the ettiquette in relation to page edits and reformatting. I am also infamous for getting bored halfway through a project, so it might be better that I start small.
In case anyone cares, here's my sandbox (well, actually, I've just included this here so I can find it more easily).
Any questions/comments? Please drop me a line (talk page).