Hey there - there are some great resources in Melbourne for queer parenting - google 'Pride and Joy Online' for a little publication for prospective lesbian parents by the Royal Women's in Melbourne.. there's also a group called "maybe baby melbourne", try googling that too. That's all I have for Melbourne specific... As far as general info goes, Leasha has some great threads on here and as Babysteps mentioned, there're a few blogs that you might find interesting
Wish you all the best, hope that info helps!