The CV series is 80 PLUS Bronze certified, providing up to 88% efficiency for less heat and lower energy costs.
Corsair 450w CV450 80+ Bronze Power Supply (CP-9020209-AU) $45 + shipping
Corsair 550w CV550 80+ Bronze Power Supply (CP-9020210-AU) $55 + shipping
Free click and collect available in Adelaide, Brisbane, Maroochydore, Gold Coast, and Sydney.
Not that this is of any use to me since I don't live in Adelaide anymore, but it's pretty awesome that Umart has a store there now. For the longest time, you were stuck with MSY (and PCDIY when they were around) or Allneeds there…