Since they announced the new XBOX360 SLIM at E3, prices on regular XBOX360's have started to fall. The lowest I have seen so far is:
http://www.ozbargain.com.au/node/27061
But i have a feeling once the slim is actually released the regular consoles will be DIRT cheap. Hence the purpose of this thread is to watch the prices fall =D.
I don't think they'll go any cheaper, they are just making room for the slim stock and they are selling well anyway.