North or South side?
Northside has:
Queensland Gamers Guild which meet at Hendra, Aviation High (Orktoberfest is on last weekend of October)
Northern Knights meet at Caboolture (can't tell you times though but
IIRC its one evening per week)
Bray park Alliance is
LOTR exclusive as far as I can tell
Southside has:
League Of Extraordinary Gamers meet once a fortnight
IIRC in Holland Park or nearby
Blind Pig meet once a month, in a suburb near Mt Gravatt
Brisbane Independent Gamers at the Serbian Hall in South brisbane once or twice a month.
The
GW battle bunker at Mt Gravatt store - you are always able to get a pick up game
All of them have internet websites and most are in White Dwarf when it lists games clubs.
I occasionally drop into QGG as it is closest and I can often get to it. But haven't been for a few months.
Hope that helps.