Trading DESKTOP - I need HELP with a new portable one

Interested in a trading computer. I'm hearing good things about the speeds, cooling, prices of AMD chips, so I'm interested. Also need a dedicated video card I think (4 monitors). Should I consider hooking up all of my monitors wirelessly. This is convenient but is it very good for graphics? I need someone to build it though as I don't trust myself. I live at the West Toronto/Mississauga border. I'd like to be able to have a portable set up (with a couple of monitors) that I can take to Florida, or my trailer in summer. What type of build have you done, or would advise? Advice appreciated, thanks