The only Z scale i saw for sale at the perth model railway show was Rohukan, and it was mega bucks, they wanted the smaller controller plus a 1 amp /12 volt power pack for Aussie for 89$ .. i got mine shipped from Z monster 28$ plus shipping and a replace ment power pack from Jaycar for 20$.. I will still be buying their stuff from over seas at that price. *shrug*
The only one anoying thing i find with the packs is their surge protection, it would be good if it took a tiny bit longer to cut out when running with marklin turnouts, as sometimes the curved ones do short with some engines for a tiny moment. made my lazy arse fix the shorts. I was hoping to have my layout at the show, but the club im in pulled out at the last minute, i didnt find out till shortly before the saturday otherwise i would have tried to get it in by itself. Very anoyed at that.
I should have a site update though in a few days with some pictures and video of the show, the the Monday out at Dwellingup on the Hotham Valley Railway was running their narrow gauge Mikado all steamed up for fan trips (its running every Sunday if you are in the area). I have a fair bit of video of that i want to slice together. I will let you guys know once it is up.