So I'm about to go from a 3mgb DSL connection to a 16mgb cable connection. I already purchased a cable modem. It's a Motorola Surfboard SB6120. I'm just wondering if I need to upgrade my wireless router. I've had it for several years. It's a linksys WRT54G, if my memory serves me right (I'm currently at work). Do you think this router will handle the upgrade in speed properly?