I got the touring rack.
http://www.roosystems.com.au/products/roof-racks-1/roof-top-tent-rack-toyota-100-series-steel.html
I had a look at the ARB RTT and could not justify paying almost double for what I paid for our setup.
Cheers
We purchased ours last week and so far no real notice of anything different but I may use a bit more fuel. I also got the rack and the awning fitted at the same time.
We got a great deal from a local company so it was to good to pass up...