My Macs on 10 mbps cable modem with a 4 port farallon hub which is full connecting 3 printers and the modem. My wife is 15 ft. away on a PC laptop having to use dial-up.

What do we need to purchase to have her be able to use the cable modem as well without messing to much with my set-up which has worked flawlessly for 10 yrs? Router of some kind? Any advice?

PS: Sorry, just realized I posted this in the wrong category.