Hi Remus
Think about the coming Snake Valley Astro Camp, 28 Nov - 2 Dec:-
http://snake-valley-astro.000webhost.info/news.html
About 1 hour 30 min drive from Melbourne outskirts.
or maybe the VicSouth Star party, 31 Oct - 4 Nov:-
http://www.vicsouth.com/vicsouth2008.htm
About 4-5 hours drive from Melbourne.
As Mike says, there is an active group that gathers at the MPAS site:-
http://www.mpas.asn.au/BOS1.htm
Cheers
Eric