Australian build. Amazon, Newegg, Tigerdirect and all those American sites arent an option (costs way too much to import, if the options even available).
Yea, I'v had good dealings with PC Case Gear before, really good customer service. Gumtree I would be wary of as it is essentially the Australian version of Craigslist.
Have a look at MSY and Umart as well, also had good dealings with them.http://www.umart.com.au/http://www.msy.com.au/index.jsp