about the real world... the title "Ditch the problem router" didn??t cover the PC/laptop itself... very important issue when you kick the router out of the windows...
So just to make these comment of mine usefull for more people...
When you change one component, you often have to change another component in the component group.

Most laptops have a standard network card built in, so you can often improve your speed by first simply upgrade the network card in the laptop !