In the form of a router.

Most if not all of them have firewall capability and you can encrypt them with your own 64 or 128 bit encryption, in addition to yur financial institution encryption.

This will protecty you against inbound attack, but you should know that when you open a website in your browser, you are in fact opening a port to your PC, so be careful where you go.

McAffee has a 'site advisor' that is at least IE 6.0 compatible. It will warn you of sites that it is aware of that are potential problems.