Think carefully about what sort of charter you want to go on mate. If you read a thread called "the charter that almost ruined fishing" you'll see they're not everyones cup of tea. If the deep sea variety interests you I'm sure there's plenty of charters people here can recommend. I believe there's also guides that operate out of the gold coast which are targetted more toward sports fishers, which might also interest you. Good luck and Happy Birthday.
Joel