Thanks and it's not a problem running two cat5s I have two packs of outdoor cable from lowes but why would I need to do two runs is it something to do with signal interference by using one cable? and my last question I forgot. I am assuming it will only be one jack per modem or is it two jacks per modem?
Yes, I would recommend a separate run for each circuit to minimize the possibility of interference. It also makes it easier to do the installation. The wiring depends on the installer. He may split it out into two one-pair jacks, or wire up one two-pair jack, for each modem.