Bubsy
Somebody asked this same question recently about Townsville. I suggested to him that he check out the best newsagent in town. There is a publication that they have in the sport/fishing magazine sections that has maps/ charts/GPS refs from I think the bottom end of the GBreef all the way round to half way down WA. Unfortunately can't remember the name of it - but I found it in Lismore NSW, so it shouldn't be too hard to find up there. If you find it maybe you could post its name here for others. I think you will find it very useful
Its bigger than A4 or foolscap size
Cheers - Tony