It should be easy for you to find a place to live in Canberra during Christmans providing that you have a stable job. Also, join the following email group, and browse old advertisements.
http://au.groups.yahoo.com/group/actchinese/
I saw some apartment ads in it yesterday. If really needed, I can provide only one room for the time being. Please contact me by QiaoQiaoHua.