Might wanna check out Ch smith marine here in melb.
$1049 for the HDS5x for 50/200khz transducer
or $999 for the 83/200khz transducer
Free freight and great back up service if needed
http://www.chsmith.com.au/LowranceFi..._Plotter1.html
OR http://www.chsmith.com.au/GPSPlotter1.html For the combo HDS-5 $1298
Regards frank