I read this on gumtree.com.au. Some bloke in Vermont South has a full grown, fruiting mandarin tree in his yard which he's digging up, and is offering it to anyone who can come and pick it up (and who, I guess, knows something about uprooting mandarin trees). His ad is here:
http://melbourne.gumtree.com.au/melbourne/44/18454744.html. I would love it but am renting.
Cross posted to http://community.livejournal.com/gardendownunder/ .