Currently I have (2) linksys ddrwt wireless routers. one in my basement setup as a router/access point, the other in my workshop setup as just an access point. both routers are 802.11b/g I would like to add wireless n capability to my network as both my phone and tablet have 802.11n capability. Do I need to replace my my router and access point, or could I simply plug a wireless N access point into my switch and fly with it? would the phone/tab automatically run at N speeds? Any suggestions on equipment?