Beyond the End-All, the only thing you'll need to swap out to make a stronger build is getting an SSD. The motherboard supports multiple GPUs for both AMD and NVIDIA. The PSU provides more than enough power to support Crossfire/SLI setups. There is space to go as wild as you like. The rest are all more than enough to compete with the best PCs out there (as well as consoles, obviously). If you are wondering why we don't recommend i7s, read here. It also meets the requirements for the Oculus Rift. Please do note that this is a great build if you plan on OC/SLI/CF.
