Speaking of computer security, there's nothing more dangerous than leaving a wireless access point wide open, especially if you use it to access bank accounts and private data. When purchasing a router, it's important to make sure you check these essential settings...
1. Change the default password. Opening a browser to the router IP address (usually 192.168.1.1) and entering the default username and password (varies by router), you'll be sent into the main interface to change all of your settings.
2. Change the SSID. This creates a unique access point name for your router. You may also choose to hide it if you don't want it broadcasting for everybody to see.
3. Change to WPA2. By default, some routers leave it as WEP as the means of security. This is a no-no. Most crackers can hack through one of those passwords in less than 5 minutes. WPA2 for the win.
Other optional settings include port forwarding (for you any gamers or downloaders out there) and setting up dynamic DNS (for remotely connecting to your computer more easily), but for most part, that's it. If you want to share your Internet publically, we suggest getting two routers - then limiting the bandwidth on the public one so you can still utilize the majority of the bandwidth.