There has been a fairly heated discussion going on in the ATC section about break relief on nightshifts in Australian ATC centres, specifically Melbourne Centre
http://www.pprune.org/forums/showthread.php?t=296753
You can as pilots probably disregard the parts about inner politics and concentrate on the factual posts. It would be interesting to know what you think about the proposal that a person unqualified on the position will be responsible for at least 20 minutes at a time for your flight, and so you will probably get a "will advise" to all requests during that time.
Keep in mind that after the Uberlingen collision it was found that their should be at least 2 qualified controllers available at all time day or night for each sector, so that if things get tough there is someone to call for help. This proposal means that for a 7 hour period there will be only one person qualified for each group of sectors in the centre.
I don't work in Oz anymore so no skin off my nose directly but would be interested to get a pilots perspective. Maybe even Dick Smith might weigh in as surely he will agree this is a serious safety issue that needs to be looked into further.