I quite like
http://www.rossiboots.com.au/ they make comfortable and hardy boots in an assortment of styles so i can always find a pair to fit the job. My father and I both swear by them and he has stayed with the brand for a good 30 years now.
I curently have
http://www.rossiboots.com.au/catalogue/detail/303-endura/ (pic related) but im looking into getting a pair of
http://www.rossiboots.com.au/catalogue/detail/180-degree/ for wearing /out/