[Blad3101]

I'm assuming that you have a cable modem already, just get a wireless router from Linksys (wireless would work better for your sake really, I prefer hard-wired connections though) for about $50.00 to $60.00 dollars. The router will have both hard-wired and wireless capabilities on it. Companies have cheaper makes out there for routers (i.e. D-Link), but you really don't wanna go cheap when security (wireless and firewall) and connectivity is on the line. You might need some cat-5e (Ethernet) cables too if you do want to hard-wire this up.

P.S. Since a wireless connection can be read from anyone who has a wireless capable computer within the vicinity (i.e. laptops), security is needed for a wireless connection. This of course is usually only a problem in an urban community though. If a "hacker" jumps onto your connection they are basically using up your own bandwidth (slow down) and money.