Gday Mick,
Have a look at Peter Pakula's website www.pakula.com.au for all the good tips re lure trolling and boat set up.
He has an abreviated version of his Between the Lines CD on the web for free,
http://www.pakula.com.au/index.php?o...p=5&Itemid=223
Hours of good reading there.
Cheers,
Myles