The Yongnuo TC 80n3 clone :
http://cgi.ebay.com/New-YONGNUO-LCD-...742.m153.l1262
works out 71AUD inc post (AUD/0.7 USD)
The Aputure TC 80n3 clone :
http://cgi.ebay.com/Aputure-Timer-Re...1|293:1|294:50
79 AUD inc postage
the one I found (Greenlife clone)
http://cgi.ebay.com/ws/eBayISAPI.dll...ayphotohosting
works out 77 AUD inc postage and even cheaper if I ask them for a white balance cap and 40D screen protector and maybe a magnifying eyepiece angle viewer.
Definitely cheaper than the ORIGINAL CANON TC 80n3 prices I've seen.