you have to be careful with internet connection sharing. some ISP's won't allow it, because of bandwidth concerns. in my area, that hasn't been a problem, as I have called both Sympatico HSE and my cable provider, and neither of them have any issues with two to five computers being on the same line. If you do try to connect several computers through one line, and your ISP doesn't like it, they may a)cut off your bandwidth or b)charge extra.