Darren, I am also from Aus and looking at lights at the moment! Difficult to find non-US options, which as you say aren't feasible due to the electric differences.
I spoke to a guy at the LFS recently about lights, I don't believe that Kessil has a distributor in Australia unfortunately.
An option could be 2-3 BoostLED PAR30 lamps - I have one above each of my picos. Even then it is tricky to find suitable fixtures! I ended up hacksawing some lamps to make them work.
By the way - check out the Aussie Reefer Thread in my signature =0)
Edited by castiel, 04 April 2012 - 07:52 PM.