Ummmmmmm dont count on tha service changing from the norm at tha moment, as union an govt are still bun fighting, so might be that the last one outa the city is about 12.04am, wouldnt that be lovely.Doesn't seem to be any official info posted about Melbourne metropolitan
services yet, but The Age has a summary:
http://www.theage.com.au/y2k/transport.html