luckily here in GA, especially the northern atlanta area, there are afew isps that don't care about the number of pc's in your house..

speedfactory.net
speakeasy.net (might not be available after the directv customers all switched and took up all their dslam slots)

The tech at speedfactory.net i spoke told me that they don't care, they actually sell NAT capable devices to use with their service. They also don't mind servers (mail, web, or game).

damnit, that came off soundin like an ad.. blah