Check Craigslist Daily!!!

[Druu]

we dont get CL here in AUS but we do get good deals on plecofanatics.com and petlink.com.au especially on tanks!

It might not be as popular down there, but you've got it too: http://geo.craigslist.org/iso/au

 

[Mudfrog]

I found a 100 gallon (50x18x19 I think) for $75, tank only. Still good enough of a deal cause thats the exact dimensions I'm looking for. The problem I'm having lately is people on craigslist telling me i'm first in line then never getting back with me no matter how much I try to contact them.