I need a wireless router for home use. I want to hard wire one (desk top) box to the router and use wireless for the laptop. What should I look for in a wireless router? I've read enough to know I want 'N'. I also need to hard wire the desk top - what should I look for in the router specs to ensure I can run at least one hard wire from router to box? Maybe all wireless routers have hard ports out? But, what terminology do I look for to ensure this function? Lastly - do all routers provide hard firewall protection? Thanks.