I have a Triton with a GMC saw; I also have a GMC compound sliding mitre saw. The mitre saw sees very little use these days, the Triton a lot more.
When GMC were around they had a huge range of tools available and my policy was to buy them and see how much I used them - if they got a lot of use then when they packed up (which was not uncommon) I'd replace them with a better brand.
GMC tools which I still have and which still do the job properly are the mitre saw, the circular saw in the Triton, a thicknesser and a biscuit cutter.
My advice is: don't spend large sums on a trade quality brand if you aren't going to give it the workout it is designed for. To take an example Trade Tools Direct will sell you a Makita 235mm circular saw for $258 or their own brand (Renegade) for $168. My experience of Renegade tools is that they are excellent and accurate: they may not have the life of a Makita but unless you work with them for a living that is unlikely to be a concern.
How about this
Renegade compound mitre saw? Unfortunately for you they are a Queensland company so shipping to WA will probably eat up any savings!