I have had to use similar set ups to yours, Narwhal. If you are gaming I would recommend these http://www.netgear.com/home/products/powerline-and-coax/high-performance/XAVB5101.aspx
they're so much more reliable. Especially if your signal strength isn't too good on wireless. Just plug one into an outlet in your room and the other into an outlet near your router and you essentially have a wired connection.