So the situation is that I have Ethernet cable which provides internet to my computer. Thing I want is to have wi-fi connection in my house and Ethernet cable (like I have before) to use for my PC. I will use wi-fi for my laptop and mobile phone. I think I need router for that and I'm looking at Asus RT-N16 (suggested in Coding Horror) for it, but I am not sure. Is it the right thing for me and I will be able to get wi-fi signal and keep the Ethernet cable? I guess the system will be that current cable goes into router, router provides wi-fi signal and gives back new cable... or something like that.

Thanks in any advice! And sorry if topic isn't in right site.