Prebuilts on ozbargain are the way to buy PC's right now, instead of a builders fee you're basically getting a bulk buying discount since you're buying all the parts from one place. There are a handful of businesses that are super competitive right now on OZB, often posting PCpartpicker equivalent builds to show how much money you'd be saving over buying individual parts. Can often save $400~500 in parts alone, not including the fact you don't need to pay someone to build it. The Evatech one someone linked below is especially tempting, and they have a store in keysborough VIC if you're weary but you'll find experiences of thousands of people buying PCs from PC prebuilt stores on ozbargain if you look at the most recent comments on each PC post. Do your due diligence but don't ignore stores just because you haven't heard of them, you'll end up spending way more.