Cable and Internet connection help

wireless n or better for thee router. a "G" router has the least distance. Plus- put the router up on a shelf. If higher- the signal can be received better. Just put a 4 way splitter in and run your own cable. Get good cable wire-not cheap crap. A lot better to work with. If you give a cable guy a donation- he will probably give you the cable. Heck- run the cable for internet downstairs, then run a splitter from your downstairs cable box and run the other wire back upstairs for your modem to be located upstairs. Or just get a very good rated router and keep the router upstairs. Your downstairs comp should still see it and have good signal strength. All in a good router. Im tireed- going to bed lol