Okay, you have a similar problem that i used to have.
I have not completely solved my problem, but i do have a temporary solution, you say you have a
usb net card from Verizon.
Do you have wireless on your laptop? if so, you can go into the "Network Connections" (For XP users: Start -> Control Panel -> Network and internet connections -> Network connections) Find the USB Network, Right click on it and press "Properties" at the top there should be a small tab called "Sharing" Click on that and tick the box stating "share my internet connection (or something along those lines)" Then with your computer make a wireless "AdHOC" Network. This will prompt you to enter an SSID and a Password. Once entered, you will see the laptop saying "waiting for users to connect" connect using the SSID on your Wii and PS3 and you should be able to get internet access.
Note: I have only tried this on my Computer with a Wireless PCI card. This does not work for my iPod touch either.
I hope that i have helped you with your slight dilemma. if you want more information please do not hesitate to post and ask.
Merlyn