Hello, I am getting ready to build a computer for my wife so she can play The Sims 4 and Dragon Age Inquisition. I already have a cooler master HAF 912, Nvidia GeForce 550Ti 2048MB GDDR5, Rip Jaws 4GBx2 DDR3 Intel XMP ready and will be running Windows 7, 500-750 watt power supply and thinking about going with a 1TB hard drive? I would like to know what would be the best mother board and CPU to buy that would run both games without lagging or freezing up that will not break my wallet. Thanks in advance from a newbie trying to keep his wife happy.