So, if I'm having a decent 6 Mbps connection from a standard ISP for my PC.. I've planned to place my router on the PC table itself.. So, I need to know which one to use for constant speeds all the time.. I'll be using internet all day since my work is in the computer.. What will be more beneficial? Ethernet or connecting though wireless network adapter? Also, does every router has the option to TURN ON the ethernet alone (keeping the WiFiturned off until i manually turn it on using a switch/slider, etc)???