I just moved and have signed up for new internet service. I was wondering if an older modem has very much effect on my internet service. I have a modem that is about three maybe four years old. The service I signed up for has 22mbps download speed. Will a modem that has a larger mbps capability work better? If 22mbps is the max that my service provider is sending does that mean that my modem will never process more than 22mbps? What things should I look for when buying a new modem?