I already have this full build I want to get: https://pcpartpicker.com/list/cQPKtg (only 550w psu but they didnt have it on the list) but I'm a noob so I know nothing about network cards and stuff like that. I have WiFi in my house but its too far away to connect to the pc so I want to be able to connect to it wireless. How does it work, which parts do I need for it and what brand is cheap and best for gaming?