Rock lawnmowers & power equipment is definitely the premier destination if your after lawn mowing equipment. They have a wide and good selection of stuff. The staff are great and no what they're talking about so if you are unsure, they will be able to help you out.
Port Mower Centre has a fantastic range of lawnmowers ranging from ride-ons to others. A lot of different brands are available also. They also do fantastic servicing on old lawnmowers that may need fixing or a new lease on life. New lawn mowers are so shiny :)