Hey Eric
Be patient mate, i lived in brisbane untill dec and when i was there it was very hard to find good stock around. dont rush in and certainly do some reading here about what good fish look like, i think you'll be very lucky if you find wilds for $100 unless they are like 4cm??
Check out this link if your thinking about an importer it helped me,
http://www.discusforums.com/forum/viewtopic.php?t=8324
Ill send you a pm with a store i had some good sucess with on the north side too!!!!!!!
HTH Justin