Not sure if the Lyrids will be great, jkrah. Peak is 11:00 UT on 22nd (9pm AEST), while the radiant of the Lyrids doesn't rise until after midnight at my place (37 deg S). Just scrapes across the northern horizon. Might be better for northern Australia.
http://www.imo.net/calendar/2009#lyr
Agree with Eric that pi-Puppids might be better, as a late session. Peak is at 2am AEST on the 24th (16:00, 23 April UT), even though the radiant will be setting at around that time for us 'southerners'.
http://www.imo.net/calendar/2009#ppu
Cheers -