I want to build a gaming PC, preferably one that can play BF3 (and other less intensive games like TF2 and the like) at high with solid FPS. My budget is about $550 AUD, maybe can push to $600 AUD. This is my first PC, and I'm a building noob, so please don't hesitate to correct my build if I am wrong!
I can't find the AMD Athlon CPU that you mentioned in any online stores in AUS. Would that be a superior choice over Intel i3? I don't plan to do any overclocking by the way, just put the CPU in and go.