|I suspect your laptop will also have a network port available so yes you could plug it in directly for gaming. I would recommend using a SOHO router between your internet and your LAN. Then you could plug both your PC and your laptop in at the same time and not have to mess around with plugs all the time if/when you want to change machines.|
Guapo is 100% correct. Wired is always better for gaming. I know, not only am I professional in networking (and computing in general) but I've also been gaming so long I started on pinball machines because video games (and personal computers) hadn't been invented yet.
Just FYI, a laptop will never be as good for gaming as a PC. If I were you, I'd build a gaming PC and if you have to have a laptop (ie: mobile computing) just buy the basics to fill those needs.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.