Brent doesn't English goodly, and his article hurt my head.
To do the swap, you'll need brakes and new levers, plus some new cables and housing. Don't skimp on a brake upgrade. Installation is easy enough, but getting the pads aligned takes a bit of patience. I can probably swap brakes front and rear in 20 minutes, but it shouldn't take you more than an hour, which allows for a beer or two.
Avid is pretty much the best choice, but I have been surprised by the quality of current Tektro brakes. One of my current bikes came with a set, and they do the job.