setting up a wireless network. help!

I only have a laptop in my house and I currently pay verizon for a wireless broadband card. I have a nintendo wii and an iphone and would like to set up a wireless network in my house for these things to run off of. Is there some type of device that can take the internet signal I'm receiving from my broadband card and broadcast it as a wireless network that I can pick up on other devices?

Just as an example I've heard someone tell me that there is a usb device that can convert the broadband signal into a wireless network, but i can't seem to find any info on it.

 

From a network perspective Wireless Network Card is similar to having an internal modem on the computer.

May be this can Help, http://www.ezlan.net/DialUp.html

Pleas Note that Option 2 on this page is available with other hardware (the one mentioned in the page is only for DialUp Modem) there are special external Wireless Router that the Wireless Internet card can be plugged into.

http://www.cyberguys.com/templates/SearchDetail.asp?productID=12735