Hi Neville,
If the weather is clear you might consider visiting Mt Coot-tha Lookout on Sat 26th May from 7 to 9pm. The Brisbane Astronomical Society (BAS) holds this free public viewing on a monthly basis if the weather is good.
There will be a good range of scopes available to look through and some of them will be dobsonian's. There should be a couple of Sky Watcher Dobs in the mix as well.
This is a link to the BAS website:
http://www.bas.asn.au/PublicFieldNights.html