leave it to linux fanboys to use a loud, mtf heavy, unintuitive $100+ pc setup to solve a problem that can be easily fixed by a $60 solid state cable/adsl router.
Loud + Heavy = This is why you have a frikkin closet.
100+? I got my Pentium 90 for free. Throw in a $10 NIC I had lying around, woo! Free router!