[Freakin]

You'd need a wireless router. Any computers that are not close enough to (or convenient) plug into the wireless router would also need a wireless adapter installed (can be an external USB adapter).

The connection would go
Wall-->Cable Modem using regular coax cable
Cable Modem-->Wireless Router - Using a regular ethernet network cable and plugging into the WAN or Internet port on the router
Wireless Router-->Computers - This connection is either made wirelessly or with network cables


Freakin