What if I may is your bandwidth up/down? Regardless wireless or hardwired Right now using 2 game machines that is 8 items. Also the pk5000 modem sounds more like a modem/router combo. I did a quick search and that is what you have, a modem/router combo. This is the link http://forum1.netgear.com/showthread.php?t=60507 .
It also told me you use DSL. So it can only obtain a certain since it is phone wiring and not insulated cable. Also the speed is only 10/100. That is kinda becoming old school. Now the speeds are 10/100/1000. Look for this type of device for your system. Start with your ISP because as all ISP's they only use certain modems/router combo's. With a larger output of information via the 1000 rate you may be able to try to connect as many devices via wireless.
If you want those items hard wired then it must start from the modem itself.
It is not like wireless in any way or manner. The brand of modem is what your ISP uses on its network so you need to check there website or call them.

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